They are asking me to find the slope and make the equation of the line in the slope-intercept form

This is the problem
( I leave a photo of the graph )

Linnea is renting a bike. It costs $4.50 per hour plus a $5 deposit.

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Graph the equationy= x+3[tex]y = x + 3[/tex]