First find the slope of the line = (y2 - y1) / (x2 - x1) where the 2 points are (x1, y1 and (x2, t2).
Then substitute the values of the slope (m) and one of the points into the point-slope formula
y - y1 = m(x - x1)
1/10 of 700 would be 700 would be 70 because 70 x 10 = 100 hope this helped
He can make a 70 or higher to keep a B avg.
