Algebra 1 Mid-Year Review

Is this a function?

• Function

• Not a Function

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

For the function f(x) = -3x + 3 find f(0).

• 0

• -3

• 3

• -1

Find the slope from the table:

• -2/5

• 5/-2

• 5/2

• 2/5

What is the slope in the equation:  y=4x+3

• 3

• 4x

• 4

• x

Simplify: 
(x - 2)(x + 2)

• 2x - 4

• x² + 4x - 4

• x² - 4

• 2x + 4

Simplify:
(x - 9)(x - 7)

• x² - 2x - 63

• x² - 16x - 63

• x² - 2x + 63

• x² - 16x + 63

What is the slope of the line whose equation is
5x+2y=6?

• 2

• 5

The cost of airing a commercial on television is modeled by the function C(n) = 110n + 900, where n is the number of times the commercial is aired. Based on this model, which statement is true?

• The commercial costs $0 to produce and $110 per airing up to $900.

• The commercial costs $110 to produce and $900 each time it is aired.

• The commercial costs $900 to produce and $110 each time it is aired.

• The commercial costs $1010 to produce and can air an unlimited number of times.

Write an algebraic expression for the phrase:
   The product of g and 4

• 4g

• g+4

• g/4

• g - 4