Ch.1B (1.4, 1.5, 1.7 Review)

Given f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f - g)(x).

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

If f(x) = 3x-1 and g(x) = x²+2,

what is f(g(x))?

• 3x² +5

• x² +1

• 3x² +1

• 3x² +6

Find J(K(-1)).

• 9 - √5
• √14
• 16
• 4

What is f(g(3))?

• 1/8

• 8

• 1/4

• 1/2

h(x)=x²-3x-10, j(x)=3x-2

What is (h/j)(-2)?

• -2
• undefined
• 0
• 1

Which of the following is a function?

• 
• 
• 
• 

• 2

• 15

• 7

• -9