Question

Which function has the same y-intercept as the function. y=2/3x-3

A. 2/3x +3y=-3
B.-2/3x+3y=6
C. 6x-7y=21
D. x+4y=12

Answer 1

C. 6x - 7y = 21

Explanation:

y=2/3 x - 3, y-intercept = -3

A. 2/3 x + 3y = -3

3y = -2/3 x - 3

y = -2x - 1; y-intercept = -1

B.-2/3 x + 3y = 6

3y = 2/3 x + 6

y = 2x + 2; y-intercept = 2

C. 6x-7y=21

7y = 6x - 21

y = 6/7 x - 3; y-intercept = -3

D. x+4y = 12

4y = -x +12

y = -1/4 + 3; y-intercept = 3

Answer is C. 6x - 7y = 21