Algebra 2

Which equation has an infinite number of solutions?

• 12 = 3y

• 8q + 5 = 21

• 2x + 7 - 2x = 7

• 4p - 4 = 4p + 4

• y=4y=12

Lauren has 188 songs on her iPod. This is five less than twice as many songs that Brad has. How many songs does Brad have on his iPod? Which expression represents this problem?

• 188 + 5 + 2s

• 188 - 2s = 5

• 5 - 2s = 188

• 2s - 5 = 188

• 188 + 5 = 2s

A car rental company charges $56 per day plus $0.30 per mile driven. John paid $86 after renting a car for one day. What equation should he use to find x, the number of miles he drove?

• x + 56 = 86

• 30x + 56 = 86

• 0.30x + 56 = 86

• 0.30x + 86 = 56

• 56x + 30 = 86

Give the domain and range. Tell if it is a function.

• D: {-4, -2, 0, 2}

  R: {-2, -2, 1, 1}

  Function

• D: {-4, -2, 0, 2}

  R: {-2, 1}

  Function

• D: {-4, -2, 0, 2}

  R: {-2, -2, 1, 1}

  Not a Function

• D: {-4, -2, 0, 2}

  R: {-2, 1}

  Not a Function

• Not enough information to determine range and domain.

What is the range of the following relation: (9, -2) (4, 3) ( 8, 10) ( -4, 8)

• {-4, 4, 8, 9}

• {-2, 3, 8, 10}

• (9, -2) ( 4, 3)

• (8, 10) (-4, 8)

• (-4,8) - (9,-2)

Which of these mappings sets represents a function?

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• None of the mappings represent a function

Write the equation of the line:

• y= -x

• y= 4x+3

• y=1/4x+3

• y= -4x+3

• y=-1/4x+3

Conner has $25,000 in his bank account. Every month he spends $1,500. He does not add money to the account. Which function models Conner's situations?

• f(x) =25000x-1500

• f(x) =25000+1500

• f(x) =1500x+25000

• f(x) =-1500x+25000

• f(x) = 23,500x

Which scatter-plot most likely has a line of best fit represented by y=3x+1?

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• None of the scatter plots have a line!

For lunch, Amanda had a hamburger and some potato chips. The hamburger totaled 325 calories and each chip had 12 calories. Which function represents the situation.

• f(x) = 12 + 325

• f(x) = 12x + 325

• f(x) = 325 - 12x

• f(x) = 325x + 12

• f(x) = 337x