Correct. It is only interested in the portion of the graph confined to this interval
Answer:
y = -3x + 6
Step-by-step explanation:
We can first find the y intercept by looking at y when x = 0
y intercept = 6
We can then find the slope by looking at the patterns on the tables.
As we can see, the top row's pattern is +4 every time
The bottom row's pattern is -12
Slope = rise/run
-12/4 = -3
Therefore, the equation for the chart is y = -3x + 6
Cost of apples, y, varies directly with pounds
of apples purchased, x.
y = kx
k is constant of proportion
Four pounds of apples cost $5
5 = 4k
k = 5/4 = 1.25
10 = 8k
k = 10/8 = 1.25
As it should be, k is a constant equal to 1.25
y = 6(1.25) = $7.50 for 6 pounds of apples
Step-by-step explanation:
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.look at the picture I have sent u
