Write a liner function f with f (2) = -2 and f(1) =1

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?