Elaine has a toll road pass with $50.00 on the pass. it costs $1.25 roundtrip each day for elaine to use the toll road to go to work and back home again. which expression can elaine use to find out how much money she has left on her pass after n number of days?

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

to complete this square you have to rotate about the origin 270 degrees clockwise.