Question

Find each function value specified below. Show your work!

1) f(x) = 7x – 3, find F(-2), f(4), and f(O)

2) g(x) = 5 – 2x, find g(-3), g(0) and g(1)

3) h(x) = 8 + 3x, find h(-2), h(4), and h(0)

4) k(x) = 9x – 16, find k(-1), K(0), and k(5)

5) A(x) = – 6x + 2, find A(-3), A(0), and A(7)

6) T(x) = 11x + 4, find T(-1), T(4), & T(0)

1) f(x) = 7x – 3, find F(-2), f(4), and f(O)
• f(-2) = 7(-2) – 3
f(-2) = -14 – 3
f(-2) = -17
• f(4) = 7(4) – 3
f(4) = 28 – 3
f(4) = 25
• f(0) = 7(0) –  3
f(0) = 0 -3
f(0) = -3
2) g(x) = 5 – 2x, find g(-3), g(0) and g(1)
• g(-3) = 5 – 2(-3)
g(-3) = 5 – (-6)
g(-3) = 5 + 6
g(-3) = 11
• g(0) = 5 – 2(0)
g(0) = 5 – 0
g(0) = 5
• g(1) = 5 – 2(1)
g(1) = 5 – 2
g(1) = 3
3) h(x) = 8 + 3x, find h(-2), h(4), and h(0)
• h(-2) = 8 + 3(-2)
h(-2) = 8 – 6
h(-2) = 2
• h(4) = 8 + 3(4)
h(4) = 8 + 12
h(4) = 20
• h(0) = 8 + 3(0)
h(0) = 8 + 0
h(0) = 8
4) k(x) = 9x – 16, find k(-1), K(0), and k(5)
• k(-1) = 9(-1) – 16
k(-1) = -9 – 16
k(-1) = 25
• k(0) = 9(0) – 16
k(0) = 0 – 16
k(-1) = -16
• k(5) = 9(5) – 16
k(5) = 45 – 16
k(5) = 29
5) A(x) = – 6x + 2, find A(-3), A(0), and A(7)
• A(-3) = -6(-3) + 2
A(-3) = 18 + 2
A(-3) = 20
• A(0) = -6(0) + 2
A(0) = 0 + 2
A(0) = 2
• A(7) = -6(7) + 2
A(7) = -42 + 2
A(7) = -40
6) T(x) = 11x + 4, find T(-1), T(4), & T(0)
• T(-1) = 11(-1) + 4
T(-1) = -11 + 4
T(-1) = -7
• T(4) = 11(4) + 4
T(4) = 44 + 4
T(4) = 48
• T(0) = 11(0) + 4
T(0) = 0 + 4
T(0) = 4

### All you must do to solve these problems are to put the given numbers in place of x and solve the multiplication, addition, and subtraction. For example, in given problem T(4), 4 replaces the x both in the parenthesis next to the T and next to the 11.

I hope this helps.