Let f(x) = 12 over the quantity of 4 x + 2Find f(−1).
1 answer:
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ANSWER
96 yd
EXPLANATION
Let the width of the rectangle be w, then, the length of the rectangle will be:
The area of a rectangle is calculated using the formula:
It was given that, the area of the rectangle is 320yd²
Divide both sides by 5.
Take square root of both sides to get:
This means the length is
The perimeter of a rectangle is given by:
P=2(w+l)
We plug in the values to get:
The perimeter is 96yd
Answer:
The table is:
x y
1 1
2 5
3 9
The graph B shows the relationship y=4x-3
Step-by-step explanation:
We need to fill the table using the rule:
To find y multiply x by 4 and then subtract 3.
Writing rule in mathematical form:
y=4x-3
Now for completing the table we need to put x=1,2 and 3 and find values of y
So, the table is:
x y
1 1
2 5
3 9
The graph B shows the relationship y=4x-3