Algebra 2 Unit 1 Review

What is the equation of the linear function?

• y = -3x + 10

• y = -3x + 16

• y = 3x + 10

• y = 3x + 16

Which piecewise function corresponds to this graph?

• f(x) = { x if x < 4; -x+1 if x ≥ 4

• f(x) = { x if x ≤ 4; -x+1 if x > 4

• f(x) = { -x+1 if x < 4; x if x ≥ 4

• f(x) = { -x+1 if x ≤ 4; x if x > 4

According to this graph, what is the function value when x = 2 ?

• 4.9

• -5

• 2

• 0

For lunch, Amanda had a hamburger and some potato chips. The hamburger totaled 325 calories and each chip had 12 calories. Write a linear equation to represent the situation.

• y = 12 + 325

• y = 12x + 325

• y = 325 - 12x

• y = 325x + 12

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute

Dorothy loves to make cakes.  The following table shows how the number of eggs that she has left changes as she makes cakes.
What is the meaning of the y-intercept?

• She uses 5 eggs for every 2 cakes.

• She started with 47 eggs.

• She uses 47 eggs for every 0 cakes.

• She started with 5 eggs.

Which company shows a greater rate of change?

• Water's Edge Rafts

• Ryan's Rafts

Which of the following points is a y-intercept?
(-2,3) (4, -2) (0, 5) (-9,0)

• (-9,0)

• (-2,3)

• (4,-2)

• (0,5)

Which calculation could be used to determine the average rate of change of how many pounds of meat a person consumes between 2 and 5 people?

• Subtract 2 from 5

• Find the slope between (2, 6) and (5, 15)

• Find the slope between (0, 0) and (2, 5)

• Subtract 6 from 15

Look at the table below. Write an equation to match the pattern between m, minutes and bubbles blown, b.

• b = 12(m)

• b= m +12

• b = m ÷ 12

• none of these