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2 years ago

6

Miss lead says that if y varies directly with x and y=15 when x=-3, then y=-20 when x=4. Is she correct? Answer in complete sent

ences and show work. (PLEASE ANSWER ASAP)

1 answer:

gizmo_the_mogwai [7]2 years ago

6 0

Answer:

Yes, she is correct.

Step-by-step explanation:

y = kx is direct variation

15 = k*-3

k = -5.

So the equation of variation is

y = -5x

When x = -4:

y -5*-4 = 20.

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