A contractor is roofing a house. The contractor considers a roof to be steep when the roof rises 7 in. or more for every 12in. it runs. The following graph is a model of how steep the roof is. Does the contractor believe the roof is steep? What is the slope of the roof?

answer: it actually depends on which is the independent variable and which is the dependent variable. let us say we're looking at a linear equation. y=2x+3. we theoretically could switch the equation to be x=(y-3)/2 and it would be the same line. so either a causes b or it can be that b causes a. so technically the answer is false

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6

the value of x is 28.2