Which of the following lines would not have its equation change after a dilation with a center at the origin?
(1) y = x+3
(3) y = 4x
(2) y = 10
(3) x = 6

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.