1. Distribute the Negative Signs
2. Combine like terms
-2x^2 + 12x-7
The answer is 86. Hope this helps.
If 14 out of 20 is correct, then that is : 14/20 = 0.70 = 70%
Answer:
is the line are perpendicular then the product of there slope is -1
the slope of the first equation is 2
Step-by-step explanation:
m1+m2=-1
2+m2=-1
m2=-1-2
m2=-3
so the second equation became y=-3x+C
then insert the point (-1,2)
2=-3*-1+C
2=3+C
C=2-3
C=-1
so y=-3x-1
