MIXED REVIEW

Which statement best explains if the number 5.32147 is a rational or irrational number?

• It is a rational number. The number is not within a square root symbol.

• It is a rational number. The number can be converted into a fraction.

• It is an irrational number. The number cannot be converted into a fraction.

• It is an irrational number. The decimal portion does not repeat or end.

Which interval describes the location of π²on a number line?

• 6 < π² < 7

• 7 < π² < 8

• 8 < π² < 9

• 9 < π² < 10

Which expression is equivalent to 3^-4 · 3⁶?

• 1/3¹⁰

• 1/3²⁴

• 3²

• 9²

Ana Maria reads 15 pages of a book each day. If x stands for the number of days that Ana Maria reads and y stands for the total number of pages that Ana Maria reads, what is the graph of this relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Which equations have infinitely many solutions?

• 2x = 3x – x

• 3x = 3(2 + x)

• 4x = x + 4

• –2x = – x – 2

• x – 1 = 2x – (x + 1)

What is the meaning of the solution to this system of equations?

• Gina walks 1 mile per hour faster than Adam.

• It takes Adam 5 hours to hike from Bridgetown to Lakeville.

• At 2 hours, both Adam and Gina are 4 miles from Bridgetown.

• At 0 hours, Adam is 0 miles from Bridgetown and Gina is 10 miles.

Which equations represent a linear function? Select all that apply.

• y = x/3 - 1

• xy = 4

• y = 2x² - 4

• y = 1.7x + 9

• y = (x - 7)/10

What is the meaning of the point (0.5, 0) on the graph?

• The tree grew at a rate of 0.5 foot per year.

• The tree was 0.5 foot tall when it was planted.

• Jacob planted the seed 0.5 foot below the ground.

• The tree started growing above ground 0.5 year after Jacob planted the seed.

7⁰

• 1
• 7
• 0
• -7

The graph shows the distance Ella travels from her house to the library. On her trip, Ella walks from her house to the bus stop, where she waits to get on the bus and rides to the library. Then, Ella walks to the library after getting off the bus. Which statement best explains segment C of Ella’s trip?

• Ella stops and waits for the bus.

• Ella walks to the bus stop at a slow, constant speed.

• Ella rides the bus to the library, moving at a faster, constant speed.

• Ella quickly walks to the library at a constant speed after getting off the bus.