Answer:
Slope is 2
Step-by-step explanation:
(-2, -4) and (2, 4)
Slope:
m=(y2-y1)/(x2-x1)
m=(4+4)/(2+2)
m=8/4
m = 2

Substract '-3.4x' at LHS nad the RHS of the above expression.

Add '4' on both LHS and RHs of the above expression.
<span>3/8 is left is the correct answer if multiple choice
</span>
79 is 4 below 83 so her next grade needs to be 4 above in order to get an average of 83. The answer is 87.