Which of the following is equivalent to [sin (2θ) − tan (θ)] / tan (θ) ?

a. sin (2θ)
b. cos (2θ)
c. 1 - 2 cos^2 (θ)
d. 1 + 2 cos^2 (θ)

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.