To find the equation of the linear function, we need to determine the slope (m) and the y-intercept (b) using the provided data points.
Last year:
Number of cubic yards ordered (x) = 4
Total cost (y) = $220
This year:
Number of cubic yards ordered (x) = 7
Total cost (y) = $340
First, let's find the slope (m):
m = (y2 - y1) / (x2 - x1)
m = ($340 - $220) / (7 - 4)
m = $120 / 3
m = $40
Now, let's use the slope to find the y-intercept (b) using one of the data points:
$220 = $40(4) + b
$220 = $160 + b
b = $220 - $160
b = $60
Therefore, the linear function in y = mx + b form is:
y = 40x + 60
Last year all I ordered for cubic yards of soil and spent $220 this year she ordered 7 cubic yards of soil it's been $340 dollars right the equation of the linear function that models of the relationship between the number of cubic yards of soil ordered and the total cost in your answer and y = mx + b form
1 answer
1 answer