If tanθ= -3/4 and θ is in quadrant iv, cos2θ=
33/25
-17/25
32/25
7/25
24/25

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

How many square inches are in 60 square feet?