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y-intercept - Wikipedia


The y-intercept of ƒ(x) is indicated by the red dot at (x=0, y=1). In analytic geometry, using the common convention that the horizontal axis represents a ... Because functions associate x valu...

x- and y-Intercepts - Purplemath


Take a closer look, and you'll see that the y-axis is also the line "x = 0". ... an x- intercept is a point in the equation where the y-value is zero, and; a y-intercept is a ...

Intercepts of Linear Equations


To find the y-intercept, we substitute 0 for x in the equation, because we know that every point on the ... of 0. Once we do that, we can solve to find the value of y.

Intercepts of Lines - AlgebraLAB


To find an x-intercept, let the value of y in the equation be equal to zero. ... A horizontal line (other than y = 0) will not have an x-intercept. The line y = 0 is another ...

Drawing the graph of a straight line - A complete course in algebra


The y-intercept is the value of y where it crosses the y-axis. To find the x-intercept, we have to find the value of x where y = 0 -- because at every point on the ...

X and Y Intercepts - Integrated Publishing


At the X intercept, the graph line is touching the X axis, and thus the Y value at ... The Y intercept is found by letting x = 0 and finding the corresponding value of y. ... This is true because substituting -3 for x and -2 for y reduces the equation to ...

Graphing using intercepts (old) (video) | Khan Academy


Current time:0:00Total duration:3:58 ... Intercepts of lines review (x-intercepts and y-intercepts) ... Its x-value could be anything, but we know it's y-value is 0.

x-intercept of a line (video) | Khan Academy


Sal determines the x-intercept of a linear equation from a graph. ... have to figure out what x value, when y is equal to 0, will have this equation be true. So we ...

Graphing Equations and Inequalities - Slope and y-intercept - In Depth


Slope is the ratio of the change in the y-value over the change in the x-value. ... if you know the equation, the y-intercept is the solution to the equation when x = 0. ... the x and y values of a point on the line into the equation, you will get a true ...

Intercepts from an equation: -5x+4y=20 | Khan Academy


Sal finds the x and y-intercepts of -5x + 4y = 20. ... Slope. Current time:0:00Total duration:4:08 ... Well, my y value is 0, I'm not above or below the x-axis. Let me ...

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X- and Y- Intercepts - West Texas A&M University


Jul 31, 2011 ... With that in mind, what value is y always going to be on the x-intercept? No matter where you are on the x-axis, y's value is 0, that is a constant.

SOLUTION: Why is it true that at the x-intercept, the value of y is 0 ...


SOLUTION: Why is it true that at the x-intercept, the value of y is 0, and at the y- intercept, the value of x is 0? Please give 1 or 2 examples please? I would like to  ...

Roots or zeros of a polynomial - Topics in precalculus - The Math Page


The relationship between the roots and the x-intercepts of a graph. ... At the x- intercept -- on the x-axis -- y = 0. The y-intercept is that value of y where the graph  ...