Mal earns 48 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells. Let A be the amount (in dollars) that Mai earns In a week if she sells B books.
Write an equation relating A to B. Then use this equation to find the amount of money Mal earns if she sells 31 books.
HELP WHAT IS THE EQUATION?

answer:

sometimes

*i think

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation:

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