Algebra 2 Unit 7 Test Review

What is the transformation?

• Vertical Translation up 2 and Horizontal translation right 1

• Vertical Translation down 2 and Horizontal Translation left 1

• Horizontal Translation left 2 and Vertical Translation up 1

• Horizontal Translation right 2 and Vertical Translation down 1

What is the transformation?

• Vertical Translation up 1

• Vertical Translation down 1

• Horizontal Translation left 1

• Horizontal Translation right 1

• Horizontal Shift to the right 9 units

• Horizontal shift to the left 9 units

• Vertical shift 9 units up

• Vertical shift 9 units down

Condense the following logarithm: 3 log₂ x + 2 log₂ y – 4 log₂ z 

• log₂ x³y²∕z⁴

• log₂ x³y²z⁴

• log₂ xyz⁹

• 9log₂ xyz

• Horizontal shift left 5 units

• Horizontal shift right 5 units

• Vertical shift up 5 units

• Vertical shift down 5 units

Pick the equation that is exponential growth

• y=2(0.5)^x

• y = 0.5(2)^x

What is the y -intercept of  y=3(4)^x?

• 1

• 0

• 4

• 3

Write an equation that models the following situation: Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week. (HINT: Write out the equation on a separate piece of paper and then simplify inside the parenthesis)

• y=6(0.14)^x

• y=6(1.86)^x

• y=6(1.14)^x

• y=6(0.86)^x

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

Jasmine puts $4000 into an a savings account which offers 8% interest and compounds interests continuously for 3 years. Which expression could be typed into the calculator to see how much money Jasmine will have after 3 years?

• 4000(1+.08)³

• 4000e^(.08)(3)

• 4000(1+3)^.08

• 4000(1+.08/3)³⁽³⁾