Write the equation for the cosine function that has been compressed vertically by a factor of 2, stretched horizontally by a factor of 4, and shifted down 1 unit.

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.