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

A function is defined by f(x) = 5(2-x). What is f(–1)? –5 5 15 53
asked 92.5k views
1 vote
A function is defined by f(x) = 5(2-x). What is f(–1)?
–5
5
15
53

asked
User Shamit Verma
by
7.8k points

2 Answers

3 votes

Answer:e

Explanation:

f(x) = 5(2-x)

= 10 - 5x

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

= 10 + 5

= 15

answered
User Arul Dhesiaseelan
by
8.0k points
5 votes
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
answered
User Jeffreynolte
by
8.4k points
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