Math

Which variable is the Dependent variable?

• x

• y

Which graph is linear?

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

What is the slope of the line pictured?

• 2
• -2
• 1/2
• -1/2

Is this a function?

• Yes

• No

The dimensions of an office building are 1.5 x 10² feet by 1.35 x 10³ feet. What is the perimeter of the base of the building, in feet? 

• 1.50 x 10³
• 2.85 x 10 ⁵
• 3.00 x 10 ³
• 5.70 x 10 ⁵

A microgram is equal to 1 x 10 ^-6 grams. How many times greater than a microgram is 1 x 10² grams? 

• 1 x 10^-8
• 1 x 10^-4
• 1 x 10⁴
• 1 x 10⁸

The Diplodocus dinosaur is believed to have become extinct approximately 1.38x10⁸ years ago.  The Oviraptor is believed to have become extinct approximately 7x10⁷ years ago.  How many years were there between the extinction of these two dinosaur types?

• 6.8 x 10⁸
• 6.8 x 10⁹
• 68 x 10⁸
• 6.8 x 10⁷

A water tank currently contains 275 gallons of water. The amount of water in the tank will decrease at a constant rate of 15 gallons per week.

Which function can be used to find t, the total number of gallons of water in the tank after w weeks?

• t = 15w − 275

• t = −15w + 275

• t = 275w − 15

• t = −275w + 15

Dorian paid $15.95 and $5.50 for two books. About how much money did he pay for the books?

• $20
• $15
• $25
• $30

Which equation represents the best estimate for the product of 1.8 and 3.1?

• 1 x 4 = 4
• 3 x 3 = 9
• 2 x 2 = 4
• 2 x 3 = 6