PSSA Review

In order for a graph to be proportional it has to___?

• pass over the y-axis
• pass over the x-axis
• pass through the origin

How many degrees make up a triangle?

• 45
• 90
• 60
• 180

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.
• Yes, because it doesn't pass through the origin.
• Yes, because it intersects the y axis.
• No, because it intersects the x axis.

Write an equation for this situation.

• y=9.75x
• y=19x
• y=19.25x
• y=9.5x

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D

Simplify the expression:
(5⁸) ÷ (5²)

• 5⁶
• 5¹⁰
• 5⁴
• 5¹⁶

Simplify the expression in exponential form:
(5⁴)^{3
Hint: Expand it out}

• 5¹
• 5⁷
• 5¹²

Simplify (c⁵)(c²)(c²)

• c²⁰
• c⁹
• c¹¹
• 3c⁴⁵

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Dave owns a lawn business. He charges $10 per hour and a $25 dollar disposal fee. What is the correct equation Dave would use to find out how much to charge his customers?

• y = 25x + 10
• x = 25y + 10
• y = 10x +25
• x = 10y + 25