Let L, W and P denote length, width and perimeter.
L = (2/3)W - 5
The perimeter, P, is 2W + 2L, and this, in turn, is
2W + 2((2/3)W - 5), or 2W + (4/3)W - 10, or
(2 + 4/3)W - 10, or (10/3)W - 10
-5x 2/7 =
−10x/7
srry if it is wrong man but that is what i got
Answer:
6. P, y=5x
5. P, y=2x
4. N, N
Step-by-step explanation:
If the graph is a straight line that goes through (0, 0), then it represents a proportional relation. The constant in the proportion (k) can be read from the graph as the y-value that corresponds to x=1.
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6. P, y = 5x
5. P, y = 2x
4. N, N . . . . The y-intercept is not zero, so this is not a proportional relation.
The rate of change of a graph, is the slope of the graph.
The rate of change of the graph is 4.5
The points on the graph are:
So, the slope (m) is calculated as:
This gives
Hence, the rate of change of the graph is 4.5
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