2 Next Pretest: The Real Number System Submit Test Match the pairs of equivalent expressions. (–14 + 6) – (1 + 6 46+1 (5+2b) +(26+) 86-15 (36-3) - (8+60) 26-11 (-10 +b)+(76-5) – 15 - 26 I Reset Next​

536

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

answer:

c) the x-coordinate of the center of the circle increases by 3