Intercepts of lines review (x-intercepts and y-intercepts) (article) | Khan Academy (2024)

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• Priscilla Smith

  a year agoPosted a year ago. Direct link to Priscilla Smith's post “Math can be fun sometimes...”

  Math can be fun sometimes if you do it right lol

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  (35 votes)

  • sarra

    a year agoPosted a year ago. Direct link to sarra's post “it was sort of an obligat...”

    

    

    it was sort of an obligation for me to be here but by seeing the progress I made in only 9 days ( i used to know almost nothing about math) I'm now addicted to learning it and i can't stop it's really fun
    (my eyes are burning from the screen rn cuz i've been studying for hours straight)

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    (27 votes)
• leah kelly

  6 years agoPosted 6 years ago. Direct link to leah kelly's post “help me solve this proble...”

  help me solve this problem step by step 1/3x-2 find the x,y intercept

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  (28 votes)

  • mari

    a year agoPosted a year ago. Direct link to mari's post “there is no interception ...”

    there is no interception points because that isn't a linear equation

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    (8 votes)

    See Also

    x-intercept of a line (video) | Khan AcademyFunction Calculator - eMathHelpX and Y-Intercept calculatorAfter pandemic closures, kids are still behind. Can you do their math?
• Juan Perez

  4 years agoPosted 4 years ago. Direct link to Juan Perez's post “How do i find the y and x...”

  How do i find the y and x intercepts of an equation in standard form??

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  (15 votes)

  • Kim Seidel

    4 years agoPosted 4 years ago. Direct link to Kim Seidel's post “You can always find the X...”

    

    You can always find the X-intercept by setting Y to 0 in the equation and solve for X.

    Similarly, you can always find the Y-intercept by setting X to 0 in the equation and solve for Y.

    Hope this helps.

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    (15 votes)
• lg10

  7 months agoPosted 7 months ago. Direct link to lg10's post “help me... this is so har...”

  help me... this is so hard.

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  (10 votes)
• LOLyue

  a year agoPosted a year ago. Direct link to LOLyue's post “if the question is y=5x+r...”

  if the question is y=5x+random number how to find x intercept?

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  (6 votes)

  • Kim Seidel

    a year agoPosted a year ago. Direct link to Kim Seidel's post “In all equations, you fin...”

    

    In all equations, you find the x-intercept by using y=0 in the equation and solving for x.

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    (11 votes)
• dessie

  4 years agoPosted 4 years ago. Direct link to dessie's post “how do i put a fraction i...”

  how do i put a fraction in

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  (10 votes)
• Payton

  9 months agoPosted 9 months ago. Direct link to Payton's post “this type of stuff is soo...”

  this type of stuff is soooo confusing and too me it give off little explaination when it be like "well we r gon' to zoom in" like child what in da world how do we "zoom in" or "zoom out"? i am i 8th grade but sometime when oing this math it makes me feel like a 9th grader in the 8th grade!! does anyone else agree?

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  (8 votes)

  • wagner/wally

    9 months agoPosted 9 months ago. Direct link to wagner/wally's post “i mean, teachers do say 8...”

    i mean, teachers do say 8th grade is just a transition to 9th, or maybe thats just my school, who knows.

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    (7 votes)
• samiha0624

  5 months agoPosted 5 months ago. Direct link to samiha0624's post “is there any way to figur...”

  is there any way to figure out the x and y intercept from the table? the table thing is really confusing so i wonder if there is any equations for the table itself.

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  (6 votes)

  • NeutronSt4r

    5 months agoPosted 5 months ago. Direct link to NeutronSt4r's post “There are separate formul...”

    There are separate formulas for calculating intercepts:

    y intercept: if the equation is y=mx+b, the y intercept is b
    x intercept: if the equation is y=mx+b, the x intercept is -b/m

    To figure out the x and y intercepts from a table, you can use the formula

    slope =(y₂ - y₁)/(x₂ - x₁)
    and figure out the equation first. Then you plug in the numbers from the table into the equation and use the formulas for the x and y intercepts to figure out what you need.

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    (9 votes)
• Equihua, Robert

  7 months agoPosted 7 months ago. Direct link to Equihua, Robert's post “this doesnt make sense at...”

  this doesnt make sense at all I hate this bro

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  (7 votes)

  • Kim Seidel

    7 months agoPosted 7 months ago. Direct link to Kim Seidel's post “First, this is the review...”

    First, this is the review. Maybe you need to start at the beginning of the lesson to get a better understanding. Ask questions as you go. Do the practice problems to reinforce what you are learning. If you get something wrong, use the hints to find and understand your mistake so you learn how to avoid the error. Then, try the review lesson again.

    Here's a quick overview:

    The X-intercept is the point where the line crosses the x-axis. So, it must be a point on the x-axis. Any point that is on the x-axis will have a y-value of 0. So, you find the x-intercept by using y=0 in the equation and solve for X. You will then have a point (x-value, 0) that is the x-intercept.

    Similarly, the Y-intercept is the point where the line crosses the y-axis, so it must be a point that is on the y-axis. All points on the y-axis have an x-value of 0. Thus, to find the y-intercept, you use x=0 in the equation and solve for Y. You will then have a point (0, y-value) that is the y-intercept.

    Hope this helps.

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    (7 votes)
• Luke Olsen

  5 years agoPosted 5 years ago. Direct link to Luke Olsen's post “what is the x- intercept ...”

  what is the x- intercept in the equation y=8/-1x-22

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  (5 votes)

  • naverdo

    4 years agoPosted 4 years ago. Direct link to naverdo's post “To find x-intercept, take...”

    

    To find x-intercept, take y=0
    0 = 8/-1x-22
    -x-22 = 8
    -x = -8 + 22
    -x = 14
    x = -14
    Therefore, x-intercept = (-14,0) [Assuming I got your question right]

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    (11 votes)