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.

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units