Pre Calculus Unit Test

If f(x) = x² and g(x) = 3x - 1, find f(g(x))

• 9x² - 6x + 1

• 3x - 1

• 3x² - 1

• 9x² - 1

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

• x=2

• x=4

• x=-2

• x=-4

The denominator can NEVER be...

• NEGATIVE

• ZERO

• X

• ALONE

Which expression has an undefined value?

• x-5

How do you find when a fraction is undefined?

• Set the Numerator equal to zero

• Set the Denominator equal to zero

• Set the numerator equal to the denominator

• Nothing, they are never undefined

The product of (3 -2i) and (7+6i) is

• 21 - 12i
• 9 + 4i
• 33 + 4i
• 21 + 16i

Given f(x) = 3x + 10
and g(x) = x - 2
Find f(g(5))

• 19
• 23
• -10
• None of these.