X and Y Intercept Practice

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Question 2

Find the all the x-intercepts and y-intercept for the quadratic graph below:

Find all the intercepts in the quadratic graph

Answer

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Select and check your answer...

A. y-intercept: -4 & x-intercepts: -2 and 2
B. y-intercept: -2 & x-intercept : 2 only
C. y-intercept: 4 & x-intercept : -2 only
D. y-intercept: 2 & x-intercepts : 4 and -4

Step by Step Solution

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    Step 1

    The purpose of this question is to show you that the ideas behind x and y intercepts are also applicable to non-linear equations.

    First, let's find the y-intercept. From the picture, we can see that the graph crosses the y-axis at the y-coordinate of -4.

    Hence, the y-intercept is -4.

    y-intercept in the quadractic graph
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    Step 2

    Next, let's find the x-intercept. From the picture, we can see that the graph crosses the x-axis at the x-coordinates of -2 and 2.

    Hence, the x-intercepts are -2 and 2.

    x-intercepts in the quadractic graph
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    Step 3

    Now, we have the:

    1. y-intercept = -4
    2. x-intercepts = -2 and 2

    Clearly, the answer is A.

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