Answer:
D) -0.87
Step-by-step explanation:
I took this test don't quote me on the answer but this is what my peers put.
The unit rate for the problem is 16
Answer:
y = -1/3x + 8
Step-by-step explanation:
If two lines are perpendicular, the signs of the slope must be opposite and the slopes are reciprocals.
(basically if one is say -2/3, the other is 3/2. just flip it upside down)
So this slope is 3, so the new slope should be -1/3
The equation is now y = -1/3x + b
To find b, substitute (-9,5) in the equation
y = -1/3x + b
5 = -1/3(9) + b
5 = -3 + b
8 = b
So the equation is y = -1/3x + b
Set this function equal to zero and solve. You should get:
-2 and 1 + or - i√2
Step-by-step explanation:
Recall that
so we can write our original equation as
or
Let 
so our equation becomes
which gives us two roots: 
and 
.
This is equivalent to 
and 
