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What is the yintercept of the function, represented by the table of values below?

A. 9
B. 3
C. 6
D. 12

What is the yintercept of the function, represented by the table of values below? A-example-1
User Vinorth
by
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1 Answer

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20 votes

Answer:

A. 9

Explanation:

First find the slope (m) using two given pairs of values form the table, say (1, 6) and (2, 3):

Slope (m) = change in y/change in x

Slope (m) = (3 - 6)/(2 - 1) = -3/1

Slope (m) = -3

Next, substitute (1, 6) = (x, y) and m = -3 into y = mx + b and solve for y-intercept (b).

Thus:

6 = -3(1) + b

6 = -3 + b

Add 3 to both sides

6 + 3 = -3 + b + 3

9 = b

b = 9

y-intercept = 9

User Matthew Sanders
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