The function f(x) = 2x + 3x + 5, when evaluated , gives a value of 19. What is the functions input value? 1 -1 2 -2 -3

asked Apr 5, 2018 69.4k views

3 votes

The function f(x) = 2x + 3x + 5, when evaluated , gives a value of 19. What is the functions input value?

1

-1

2

-2

-3

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7 votes

the qurstion can be written as
f(x) is equal to 19 at a certain x.what is that x?
19=2x+3x+5
19=5x+5
14=5x

x = (14)/(5)

Aufwind answered Apr 9, 2018

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