Algebra III Test Semester 1

Find ( f + g )(1) when f(x) = x - 7 and

g(x) = x + 5

• -10

• 0

• 4

• 14

For the pair of functions, find the indicated sum.

f(x) = 5 - 3x, g(x) = -8x +3

Find (f + g)(x).

• -8x + 5

• -11x + 8

• 5x + 8

• -3x

Use synthetic division to perform the division.

• 
• 
• 
• 

Use the remainder theorem and synthetic division to find f(k).

k = 3; f(x) = 2x⁴ +9x³ +2x² -3x +48

• -138

• 462

• 1062

• 1308

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Is this graph a function or not a function? 

• Function
• Not a Function 

Is this graph a function or not a function? 

• Function
• Not a Function

If g(x)=2x+5, what is the value of g(4)?

(a)  

What is f(6) for the function f(x)=3x-8

• -8

• 10

• -144

• answer not here

 $Given\ f\left(x\right)=\frac{3}{2}x+5\ what\ is\ f\left(12\right)?$  

•  $\frac{43}{2}$  

•  $20$  

•  $23$  

•  $5$