lluvialoza92 lluvialoza92

10-10-2021
Mathematics

contestada

fx) varies directly with x and f(x) = 50 when x = -10, then what is f(x) when x = 15?

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drdanielfriday1 drdanielfriday1

10-10-2021

Answer:

f(x)=-75

Step-by-step explanation:

since f(x) varies directly with x

it implies that f(x)=Kx

k=f(x)/x

when f(x)=50 and x=-10

k=50/-10

k=-5

but when x=15, f(x)=-5×15

f(x)=-75

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