Determine if each relationship is a proportional or nonproportional situation r=b2 +1

A. proportional
B. nonproportional
C. neither , nonlinear

3. solve by graphing: y = 2x + 6 x + y = -3

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4