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en.wikipedia.org/wiki/Y-intercept

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 values to no more than one y value as part of their  ...

www.montereyinstitute.org/courses/Algebra1/COURSE_TEXT_RESOURCE/U04_L1_T2_text_final.html

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.

www.purplemath.com/modules/intrcept.htm

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 ...

www.wtamu.edu/academic/anns/mps/math/mathlab/beg_algebra/beg_alg_tut22_int.htm

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.

www.algebralab.org/lessons/lesson.aspx?file=algebra_lineareqintercepts.xml

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 ...

www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.137247.html

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  ...

www.khanacademy.org/math/algebra/two-var-linear-equations/x-and-y-intercepts/v/finding-x-intercept-of-a-line

Sal determines the x-intercept of a linear equation from a graph. ... The easiest way to find the x intercept is to figure out what value x will have when y = 0.

www.khanacademy.org/math/algebra/two-var-linear-equations/x-and-y-intercepts/v/x-and-y-intercepts

48-3x=0 -3x=-48 3rd divide both sites of the equation by the coefficient of x to find the x intercept -3x/-3=-48/-3 x=16. Similarly if we solve for the y intercept

www.math.com/school/subject2/lessons/S2U4L2DP.html

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 ...

jwilson.coe.uga.edu/EMT668/EMAT6680.Folders/Barron/unit/Lesson%207/7.html

... for the x-intercepts. To find the x-intercepts of any equation, substitute 0 in for y and solve for x. ... To find the x-value of the vertex, use the formula x = -b/2a. So, ...