Answer:
Explanation:
Translate the given into two pairs of coordinates:
- (800, 975) and (1100, 1125)
Work out the equation of the line passing through both of the points.
Find the slope:
- m = (1125 - 975) / (1100 - 800) = 0.5
Find the y-intercept:
- 975 = 0.5*800 + b
- 975 = 400 + b
- b = 975 - 400
- b = 575
The line is:
Find the value of y when x = 1500:
- y = 0.5*1500 + 575 = 1325