Answer:
Step-by-step explanation:
Find the graph attached. The formula for finding the equation of a line is expressed as:
y = mx+c
m is the slope
c is the intercept (point where the line cuts the y axis)
m = y2-y1/x2-x1
Using the coordinate (1,22) and (4, 40) to calculate the slope of the line, we will have:
m = 40-22/4-1
m = 18/3
m = 6
For the intercept:
From the grapg, it can be seen that the line cuts the y axis at y = 18. Hence the intercept c = 18
The equation of the line will be:
y = 6x+18
Substitute y = 134 into the formula to get x as shown:
134 = 6x+18
134-18 = 6x
116 = 6x
x = 116/6
x = 19.33
