Question

Write the equation of the line, in slope-intercept form, that passes through the point (-2, 3) and has slope 3.

A. y = -3x + 9
B. y = 3x -9
C. y = -3x -9
D. y = 3x + 9​

Answer 1

D. y = 3x + 9​ is your answer.

Explanation:

What you do is use the slope-intercept formula:

y - y_1 = x (x - x_1)

3 is y and -2 is x.

y - 3 = 3 (x + 2)

y - 3 = 3x + 6

y = 3x + 9

D. y = 3x + 9​ is your answer.

Answer 2

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➷ Substitute the values into y = mx + c

3 = 3(-2) + c

3 = -6 + c

+ 6 to both sides

9 = c

Thus, your answer is D. y = 3x + 9

✽

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