Logs and expos review practice

Determine the order of transformations

• reflected over x-axis, left 1

• reflected over y-axis, up 1

• reflected over x-axis, right 1

• reflected over y-axis, left 1

Write in exponential form.
log₂(¹/₈) = -3

• 2^-3 = ¹/₈
• 2^1/8 = -3
• -3² = ¹/₈
• -3^1/8 = 2

Tags

CCSS.HSF.BF.B.5

Evaluate the log:
log₃(1/9) = 

• 1/2
• 2
• -2
• 3

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

The common logarithm has what base?

• 10
• 0
• e
• -e

Riley invested $1,000 in savings bonds. If the bonds earn 6.75% interest compounded semi-annually, how much total will Riley earn in 15 years?

• $1,584.62
• $2,651.39
• $2,706.86
• $1,825.10

Solve: 7^3x = 18. Round to the nearest tenth.

• x = 0.5

• x = 2.3

• x = 3.6

• x = 10.4

• x = 1.5

If $1,000 is invested at 16% interest, compounded continuously, for five years, what is the ending balance?

• $1,225,54
• $2,225.54
• $22,255.40
• $225.54

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300
• 1.16
• .16
• x

Tags

CCSS.HSF.LE.B.5

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

What is the r, that is the rate for the function: f(x) = 300(1.16)^x? Select all of the correct answers.

• 300

• 1.16

• .16

• x

• 16%