SAT Math : x and y Intercept

Study concepts, example questions & explanations for SAT Math

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Example Questions

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Example Question #25 : How To Find X Or Y Intercept

Where does the line given by y=3(x-4)-9 intercept the -axis?

Possible Answers:

Correct answer:

Explanation:

First, put in slope-intercept form. 

y=3x-21

To find the -intercept, set  and solve for .

Example Question #221 : Coordinate Geometry

Where does the graph of 2x + 3y = 15 cross the x-axis?

Possible Answers:

(-7.5, 0)

(0, 0)

(7.5, 0)

(0, -5)

(0, 5)

Correct answer:

(7.5, 0)

Explanation:

To find the x-intercept, set y=0 and solve for x. This gives an answer of x = 7.5.

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