2x - y=4
y=4 - 2x
Give your answer as an ordered pair.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

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 ?