Question

the relationship between x and y is proportional. when x is 29,y is 275.5 find the constant of proportionality of y to x use the constant of proportionality to find x when y is 408.5

Answer 1

9.5

Explanation:

A "proportional" relationship between x and y can also be described as a linear equation. y = mx + b, where m is the slope, or proportionality, between x and y. We can ignore b, the y-intercept, for the moment. To find the constant of porportionality, use the two given points:

(x,y) is (29, 275.5)

y = mx

m = (y/x)

m = (275.5/29)

m = 9.5