Size of Cup Cost of Cup Cost per Topping Small
$2.85
$0.25
18. Be Precise The table shows how much a
frozen yogurt shop charges for its yogurt.
Write an expression to show how much it costs
to buy a small yogurt with no toppings and a
large yogurt with x toppings. Then find the
total cost for a small yogurt with no toppings
and a large yogurt with 3 toppings.
Medium
$3.75
$0.30
ER
Large
$4.65
$0.35

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