Work:4x^3+2
X=-1
Plug in x
4 (-1)^3+2
4 (-1)+2
-4+2
-2
Answer: -2 (D)
Check your work: -2=4x^3+2
-2 both sides
-4=4x^3
÷4 both sides
-1=x^3
(Square root by 3) both sides
X=-1
Answer is correct
Answer: Student made an error in step 2. Correct step is 9x - 12 = 13 + 2x.
Answer:
88
Step-by-step explanation:
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Answer:
y = 9/5x +12/5
Step-by-step explanation:
First find the slope using the two points
(2,6) and (-3,-3)
m = ( y2-y1)/(x2-x1)
= (-3-6)/(-3-2)
= -9/-5
= 9/5
Using the slope intercept form of the line
y = mx+b where m is the slope and b is the y intercept
y = 9/5x +b
Using one of the points and substituting for x and y
6 = 9/5(2) +b
Getting a common denominator
30/5 = 18/5+b
30/5 -18/5 = b
12/5 = b
y = 9/5x +12/5