(1,4) (6,-1) Name two additional points on the line

(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.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Can you me find the missing length. i attached an image.