Question

If r(x) = −4x − 1 and t(x) = 2x − 1, find (r + t)(7).

−16

16

14

−14

Answer 1

\[r(7)=-4\times 7-1=-28-1=-29\]
\[t(7)=2\times 7-1=14-1=13\]

Answer 2

and
\[-29+13=-16\]

Answer 3

(r+t) = -2x -2
(r+t)(7) = -2(7)-2 = -16

Answer 4

-16

Answer 5

Thanks. c: