Hii, I'm kinda confused :/

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?