Answer:
=6x+20
Step-by-step explanation:
3(x+5)+(3x+5)
Solution:
=3x+15+3x+5
The average rate of change in that space would be 12.
To find this, use the two ordered pairs (-1, 3) and (1, 27) in the slope formula.
m(slope) = (y2 - y1)/(x2 - x1)
m = (27 - 3)/(1 - -1)
m = 24/2
m = 12