A book printing company has 245 books in stock and are printing an additional 85 books per day. If no
books move out of stock (are sold), write a function for the number of books that are in stock, b, as a
function of the number of days, d, they have been printing since there were 245 books.

this doesn't make sense lol

m∠a is 90°

m∠b is 40°

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