Question

A proportional relationship between the number of pounds of potatoes (x) and the price in dollars (y) is graphed, and the ordered pair (4, 3) is on the graphed line.

Part A: What is the price of 1 pound of potatoes? Show your work, including the proportion you used to determine the price. (8 points)
Part B: What does the ordered pair (8, 6) on the graph represent? Explain in words. (2 points)

Answer 1

I assume the relationship is linear in the form y = mx +c
If (5,4) is on the line we can calculate the equation
gradient m = change in y over change in x, = 4/5
y = 4/5 * x +c
4 = 4/5 * 5 +c
c = 0
y = 4/5 x
Part a if x = 1 then y = 4/5
part b is 2 times (5,4) so 10 pounds of potatoes cost 8 dollers

Answer 2

reply if I helped

Answer 3

@moazzam07

Answer 4

yes you did but keep going