Answer:
(x, y) --> (y, x)
Step-by-step explanation:
6 ugly
6 x 3 equals 18
f(7) = - 25
To evaluate f(7) substitute x = 7 into f(x), that is
f(7) = - 5(7) + 10 = - 35 + 10 = - 25
60
the lowest where they all = the same is 60
