Math 8 Ch 2 Review

Is (27,0) a solution to the equation y=81-3x

• Yes
• No

Is (4,5) a solution to y=5x?

• Yes
• NO

Is (-3,7) a solution to y=2x + 13?

• Yes
• No

Given the equation y=3x + 2.  If x=0, then y=?

• 0
• 2
• 3
• 5

Given the equation
y=2.2x - 1.7, when x=-3, what is the value of y?

• -1.7
• -8.3
• 4.9
• 8.3

An elevator starts at the third floor, then makes a stop at the first floor, and goes up to the fifth floor.  Which graph represents this?

• Graph 1
• Graph 2

An elevator starts at the second floor, then makes a stop at the sixth floor, and goes down to the fourth floor.  Which graph represents this?

• Graph 1
• Graph 2

Does this relation represent a function?

• Yes, it is a function
• No, it is not a function

Does this graph represent a function?

• Yes, this is a function.
• No, this is not a function.

Write an equation

• y=1x -1
• y=1x+1
• y=-1x+1
• y=-1x - 1