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What is the y-intercept of the graph of -2y = x – 4?

What is the y-intercept of the graph of -2y = x –

4?
 
A. -4
B. -2
C. 2
D. 4

2 Answers by Expert Tutors

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Ted G. | Patient & personable, math, econ, computers, and morePatient & personable, math, econ, comput...
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I believe it would be 2 (answer C).

 

If you redistribute the -2 to the right side of the equation it becomes y=x/-2 - 4/-2 which becomes y=-0.5x+2

So the slope would be -0.5 and it would cross the y-axis at 2.

Ralph L. | Algebra I, II, Visual Basic, Beginning C++ tutorAlgebra I, II, Visual Basic, Beginning C...
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-2y = x - 4

-2y/-2 = (x - 4)/-2

y = -x/2 + 2

y intercept is computed by plugging in 0 to x:

y = 0/2 + 2

y = 2

y intercept is 2