Algebra

Which of the following is equivalent to 3x - 4y = 6 ?

A.12(E)

• 
• 
• 
• 

A.2(I)

There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches.

Which system of equations can be used to find the number of 7 inch plates, x, and the number of 12 inch plates, y, that are in the cabinet?

• x + y = 140

  12x +7y = 15

• 7x +12y = 140

  7x +12y = 15

• x + y = 15

  7x +12y = 140

• x + y = 15

  12x +7y = 140

What is the solution set for -4x + 10 >= 5x + 55 ?

A.5(B)

• x >= 5

• x >= 45

• x <= -5

• x<= -45

A.5(C)

One wall inside a shoe store is used to display walking shoes and running shoes. There are 135 pair of shoes in this display. There are 1.5 times as many pairs of walking shoes as there are running shoes on display. How many pairs of walking shoes and running shoes are on display?

• 90 pairs of walking shoes and 45 pairs of running shoes

• 54 pairs of walking shoes and 81 pairs of running shoes

• 45 pairs of walking shoes and 90 pairs of running shoes

• 81 pairs of walking shoes and 54 pairs of running shoes

A.10(A)

Which expression is equivalent to

2x² + (4x - 6x²) + 9 - (6x + 3)

• -4x² - 2x + 12

• -4x² - 2x + 6

• -10x + 6

• 18x + 12

Which expression is equivalent to (h² + 9h - 1)(-4h + 3) ?

A.10(B)

• -4h³ - 33h² + 31h - 3

• 4h³ + 39h² - 23h + 3

• -4h³ - 39h² + 23h + 3

• 4h³ + 33h² - 31h + 3

Which equation is equivalent?

A.10(D)

• 
• 
• 
• 

A.11(B)

• 12kr⁷

• 72k²r¹⁴

• 144kr⁷

• 12k²r¹⁴

What is the range of y = -x² - 2x +3

A.6(A)

• x <= 4

• x >= -4

• y <= 4

• y >= -4

Which function is equivalent to

f(x) = -4 (x + 7)² - 6 ?

A.6(B)

• f(x) = -4x² - 56x - 202

• f(x) = -4x² + 14x + 43

• f(x) = -4x² - 56x - 172

• f(x) = -4x² + 190