Evaluate f(x) = -4x - 5 for x = -1.
a. -9
b. -1
c. 1
d. 4

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

225/100 of last years cost. write each fraction as a decimal and as a percent

X+ y = 5 ; x - y =3 solve using linear combination