Aline passes through (2, −1) and (4, 5). which answer is the equation of the line?

One integer is 8 times another. if the product is 72, then find the integers

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).