Algebra Refresher

Solve
3x + 5 = 20.

• x = 25/3
• x = 5
• x = 2
• x = -5

Solve
4 - 2x < 12.

• x < -4
• x < -8
• x > -4
• x > -8

What expression represents:
Seven more than three times a number?

• 3n + 7
• 7n + 3
• 7n x 3
• 7n - 3

Evaluate f(-2) if f(x) = x²+ 3

• -1
• 1
• 7
• -7

If h(a) = 3 - 2a

Find h(-3).

• 12
• -2
• -3
• 9

Let w(x) = 3x - 7. If w(x) = 14, find x.

• 7
• 35
• 2.33333
• -49

Which graph does NOT pass the vertical line test?

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

Is this set of ordered pairs a function or not a function? 

• Function
• Not a function

Is this set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Is the graph pictured a function?

• Yes
• No