PLEASE HELP! GRAPHING The function h(t) = −5t2 + 15t shown in the graph models the supporting structure of a bridge:

graph of parabola starting at zero comma zero, rising from the left to about one and one half comma 11, and falling to the right, ending at 3 comma zero

What is the domain of h(t)?

All real numbers
0 ≤ x ≤ 11
0 ≤ x ≤ 3
x ≥ 0

Please right answers only

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

Can someone answer this question for me

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?