Answer:

Step-by-step explanation:
step 1
Find the slope
The formula to calculate the slope between two points is equal to

take two points from the data
(0,8), and (8,-24).
substitute



step 2
Find the equation of he line in slope intercept form

we have

----> the y-intercept is given
substitute

8^3=512
5*12=60
512+60= 572
You would distribute the 2x to the x and 1= 2x^2+2x
then you would distribute the 1 to the x and 1= 1x+1
then you would add it all together to get
2x^2+3x+1
Before going to B.two-digit addition