Transcript If the function ƒ is defined by ƒ(x) = 2x + 3, and if ƒ(a) = 11, what is the.

If the function ƒ is defined by ƒ(x) = 2x + 3, and if ƒ(a) = 11, what is the value of a?
a) 4
Difficulty: Easy
b) 7
c) 11
d) 17
e) 25
HINT
You need to find the value of a for which ƒ(a) = 2a + 3 is equal to 11.
A: 4
Explanation
If the function ƒ is defined by ƒ(x) = 2x + 3, and ƒ(a) = 11, then ƒ(a) = 2a + 3 = 11.
Therefore, a =
= 4.