Precalculus Pretest

Money in a bank triples every 8 years. If $100 is deposited today, what will it's value be after 32 years?

• $8,500

• $8,100

• $1,600

• $400

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.LE.B.5

The y-coordinate of the point of intersection of the graph of -x+4y=-50 and x+y=20 is

• 6

• 0

• -14

• -6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The rectangular box shown has a square base and a closed top. The height is twice the length of one side of the base. Its surface area in terms of x is

• 20x

• 8x+2x²

• 10x²

• 6x

Tags

CCSS.6.G.A.4

If 2¹³ is approximately equal to 8000, then, of the following, which best estimates 2²⁶?

• 640,000

• 6,400,000

• 64,000,000

• 8000¹³

Tags

CCSS.8.EE.A.3

2^-5*64^2/3=

• 512

• 1/512

• 1

• 1/2

Answer explanation

To simplify the expression, we first evaluate 2^-5 which is equal to 1/32. Then, we simplify 64^(2/3) which is equal to 16. Multiplying these results, we get 1/32 * 16 = 1/2. Therefore, the correct answer is 1/2.

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

If f is a function whose graph is the parabola shown, then f(x) < 0 whenever:

• x<1 or x>3

• x<1

• x>3

• 1<x<3

Answer explanation

The function f(x) is negative when x is between 1 and 3.

Tags

CCSS.HSF-IF.C.7A

If log₂(x-6)=6 then x=

• 70

• 64

• 58

• 

Tags

CCSS.HSF.BF.B.5

A function f(x) is even if f(-x) = f(x) for each x in the domain of f. Of the following, which best represents the graph of an even function?

• a

• b

• c

• d

Answer explanation

An even function has symmetry about the y-axis. Choice c represents an even function because it is symmetric about the y-axis.

Tags

CCSS.HSF.BF.B.3

• 5, 7, or -3/2

• 5 or 3/2

• -5, 7, or 3/2

• -5 or 3/2

Tags

CCSS.HSA.REI.A.2

Of the following, which best represents the graph of x²+(y-1)²=1

• a

• b

• c

• d

Answer explanation

The graph of x^2 + (y-1)^2 = 1 represents a circle centered at (0, 1) with a radius of 1. Choice c is the correct representation.

Tags

CCSS.HSG.GPE.A.1