Question

1. If(x)= 5x-2, find(-3)a. -13b. 13c. -17d. 172. If(x)= 5x-2, find x such that f(x)= -3a. -1/5b. 1/5c. -1(Also explain what's the difference between the questions)

Answer 1

1. f ( -3 ) = 5 ( -3 ) - 2 = - 15 - 2 = -17

2. f (x) = 5x - 2 = -3

5x = -3 + 2

5x = -1

x = -1/5 ( dividing both sides by 5 )

The difference between the equations is that -3 is the value for the variable x in the first equation but the function is equal to -3 in the second.