Write the constant of proportionality (k). Write an equation (y=kx)

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Which function can be used to model the monthly profit for x trinkets produced? f(x) = –4(x – 50)(x – 250) f(x) = (x – 50)(x – 250) f(x) = 28(x + 50)(x + 250) f(x) = (x + 50)(x + 250)

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =