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ozzi
1 year 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)
Mathematics
1 answer:
gizmo_the_mogwai [7]1 year 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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