I need help...............
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Answer:
The equation is a function
Step-by-step explanation:
-3x + 8 = y
Reverse the function.
y = -3x + 8
Draw a graph of y vs x (below)
To determine if the relation is a function, we can use the vertical line test:
If a vertical line crosses the graph more than once in any location, the relation is not a function.
We see that at no place will a vertical line intersect the graph more than once.
The relation is a function.
Let w and l be the length and height of the rectangle.
We know that:
Substitute the first equation in the second:
Use the first equation to compute the length:
So, length = 7 cm; width = 6 cm