List the factors of 4
2 answers:
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You can see that each time x increases by 1, y increases by 5. This means that the coefficient of x is 5 (if you graphed it, the slope would be 5). To find what value to add at the end, you can look at what y is when x equals 0. In this case, that is -2 (on a graph, -2 would be the y-intercept).
width = 10 feet → C
let l represent the length then width = l - 8
perimeter = 2(length + width) = 2(l + l - 8)
given perimeter = 56 then
2(2l - 8)= 56
divide both sides by 2
2l - 8 = = 28
add 8 to both sides
2l = 28 + 8 = 36
divide both sides by 2
l = = 18
thus length = 18 feet and width = 18 - 8 = 10 feet