Answer: y=1.6552x
Step-by-step explanation:
Determine the coordinates of the two points, C and D.
C (0,0)
D (7.25, 12) [Hard to read the graph. Use the values you judge to be correct]
We want a straight line to go through C and D. It should have the form y = mx + b, where m is the slope and b is the y-intercept (the value of y when x=0). The slope is the rise/run of the line, so we'll use the two given points to determine slope. Rise = (12-0)=12. Run = (7.25-0) = 7.75. Rise/Run = 12/7.25, or 1.6552. The equation becomes y = 1.6552x + b.
Find b by using one of the given points. I'll use (0,0) because it is easy:
y = 1.6552x + b for (0,0): 0 = 1.6552(0) + b; b = 0
The equation is thus y=1.6552x
