Consider the expression 7x2 - 4 - 9x. what is the coefficient of x?
a) -4
b) 7
c) -9
d) 9

which ordered pair would not appear as a solution for the linear equation y = −x + 3?
a) (0, 3)
b) (-1, 4)
c) (3, -2)
d) (-7, 10)

the equation 2y + 53 = 165 represents the situation “joel spent $165 on one pair of jeans and two shirts (the shirts were the same price).”

what does y represent?
a) price of a shirt
b) price of a pair of jeans
c) number of shirts joel bought
d) amount joel spent on the shirts

caroline incorrectly answered the following problem:

which ordered pair would not appear as a solution for the linear equation y = -4x - 2?
a) (1, -6)
b) (-1, 5)
c) (-4, 14)
d) (2, -10)

caroline chose a as her answer. why is she incorrect?
a) (1, -6) is a solution because it creates a true statement when substituted into the equation
eliminate
b) (1, -6) is a solution because y = -6
c) (1, -6) is a solution because it creates a false statement when substituted into the equation
d) (1, -6) is a solution because it is near the y-intercept of -2.

what is the algebraic expression for the word phrase, "31 less than k and 15"
a) 31k + 15
b) k - 31 + 15
c) 31 - k + 15
d) 31 < k + 15