Use ac method
multiply 12 and -56
-672
now find what 2 factors of -672 add to -89
answer is -96 and 7
expand the middle term like that
12x²-96x+7x-56
group
(12x²-96x)+(7x-56)
factor
12x(x-8)+7(x-8)
undistribute the (x-8)
(x-8)(12x+7) is answer
Answer:
3.349
Step-by-step explanation:
everything is just moved to the right
Step-by-step explanation:
7/100
I guess 0.07 is the answer
Answer:
A
Step-by-step explanation:
Find the slope of the perpendicular line.
The slopes are related by the formula
m1 * m2 = - 1
Since m1 is 1/2, m2 must be -2
So far what you have is y = -2x + b
Find the y intercept (b).
The new line goes through (4,1)
x = 4
y = 1
1 = -2(4) + b
1 = - 8 + b
b = 1 + 8
b = 9
The answer is
y = - 2x + 9