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If f(x) = -8 - 5x, what is f(-4)

User Scherand
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2 Answers

3 votes

f(x)=-8-5x


\\ \rm\longmapsto f(-4)

  • Put -4 inplace of x


\\ \rm\longmapsto -8-5(-4)


\\ \rm\longmapsto -8+20


\\ \rm\longmapsto 12

User Sudhir Dhumal
by
8.7k points
3 votes

Answer:

f(- 4) = 12

Explanation:

To evaluate f(- 4) substitute x = - 4 into f(x) , that is

f(- 4) = - 8 - 5(- 4) = - 8 + 20 = 12

User Dinesh Reddy Alla
by
8.1k points

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