Question

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

Answer 1

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Answer:

Answer of 1 is c , 2 is c , 4 is d and 5 is d

Step-by-step explanation:

1.The expression is 7 -4 -9x

We need to find the coefficient of x

The coefficient of x is -9

The answer is option c

2.The order pair which would not appear as a solution for the linear

equation y = -x + 3

By analyzing by putting values of x and y

The answer is option c

4. Caroline chose A as her answer and we need to find which ordered pair

would Not appear as a solution for the linear equation y = -4x -2

The right answer is d as it's not the correct method

5. By analyzing the equation we get

31 < k + 15

As it is clearly written that we need "31 less than k and 15"

Answer 2

Answer of 1 is c , 2 is c , 4 is d and 5 is d

Explanation:

1.The expression is 7
`x^(2)` -4 -9x

We need to find the coefficient of x

The coefficient of x is -9

The answer is option c

2.The order pair which would not appear as a solution for the linear

equation y = -x + 3

By analyzing by putting values of x and y

The answer is option c

4. Caroline chose A as her answer and we need to find which ordered pair

would Not appear as a solution for the linear equation y = -4x -2

The right answer is d as it's not the correct method

5. By analyzing the equation we get

31 < k + 15

As it is clearly written that we need "31 less than k and 15"

The answer is option d