Is y=-9x proportional
2 answers:
Answer:
Proportional.
Step-by-step explanation:
We have been given that given an equation . We are asked to determine whether the given equation is proportional or not.
We know that two proportional quantities are in form , where k is constant of proportionality.
We can see that our given equation is in form , where
.
Therefore, the given equation is directly proportional.
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Answer:
Step-by-step explanation:
Since, here the length of the rectangle is represented by the function l(x) = x + 24,
While the breadth of the rectangle is represented by the function w(x) = x + 16.
And, we know that the area of the rectangle = length of the rectangle l(x) × breadth of the rectangle.
a(x) = l(x) × w(x)
a(x) = (x + 24) × (x + 16)