dommaddox493 dommaddox493

18-12-2019
Mathematics

contestada

A function is defined by f(x) = 5(2-x). What is f(–1)?
–5
5
15
53

Respuesta :

kendal55 kendal55

18-12-2019

15 because if you substitute -1 in for x then you have a double negative, that becomes positive and 2+1=3 and 3•5=15

Answer Link

josshyaby josshyaby

18-12-2019

Answer:e

Step-by-step explanation:

f(x) = 5(2-x)

= 10 - 5x

For f(-1) = 10 - 5(-1)

= 10 + 5

= 15

Answer Link

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