Question 8 4
Justify each step. Circle what changed and put what operation used
a. 7 + 2(x - 3) + 5x = 7 + 2x - 6 + 5x
b.
= 7 + 2x + (-6) + 5x
C.
= 7 + (-6) + 2x + 5x
d.
= 7 + (-6) + (2 + 5)x
e.
= 7+ (-6) + 7x
f.
= 1 + 7x
= 7x + 1

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Ответ:

carmen69

21.03.2020

Mathematics

y = (-1/4)*x+2

Step-by-step explanation:

The equation is written this way : y= mx+c

m is the slope and c is a constant m = (f(4)-f(-4))/(4-(-4))= (1-3)/8 = -1/4 y = (-1/4)*x + c replace x and y by the coordinates of a point to get c 1 = -1/4*4+c 1= -1+c c= 2

y = -1/4*x+2

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Question 8 4 Justify each step. Circle what changed and put what operation used a. 7 + 2(x - 3) + 5x = 7 + 2x - 6 + 5x b. = 7 + 2x + (-6) + 5x C. = 7 + (-6) + 2x + 5x d. = 7 + (-6) + (2 + 5)x e. = 7+ (-6) + 7x f. = 1 + 7x = 7x + 1