How to write -9.6 as a repeating mixed number

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?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

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