Use properties to evaluate the expression? (2•9)•4
a. 72
b. 54
c. 38
d. 15

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?

Can someone show me step by step how to do this?