Question

The function is defined by the following rule.
f(x)=2x+4
Complete the function table.

Answer 1

The answers are:

2(-3)+4 = -2
2(-2)+4 = 0
2(1)+4 = 6
2(3)+4 = 10
2(4)+4 = 12

Answer 2

-3 -2

-2 0

-1 6

3 10

4 12

Explanation:

f(x)=2x+4

Let x = -3 f(-3) = 2*-3 +4 = -6+4 = -2

Let x = -2 f(-2) = 2*-2 +4 = -4+4 = 0

Let x = -1 f(1) = 2*1 +4 = 1+4 = 6

Let x = 3 f(3) = 2*3 +4 = 6+4 = 10

Let x = 4 f(4) = 2*4 +4 = 8+4 = 12