Question

3. A florist sells large floral arrangements for $50 each. Small floral arrangements sell for $15 each. Jenna is buying 2 large floral arrangements and x small floral arrangements. Let y represent the total cost Jenna must pay in dollars.

(a) Write an equation in slope-intercept form to model this description.
(b) What is Jenna’s total cost given she purchases 4 small floral arrangements? Show your work.

Answer 1

a y=(15)x+100

b y =(15) (4) +100 y =160

Explanation:

y = mx + b

large arrangment cost $50

$50 x 2 = 100

b=100

x = the number of small arrangments that jenna is buying .in this case 4 so

x= 4

m is the cost of one small arranment so

m=15

y represents the total cost jenna pust may in dollars so you would do

15 x 4 =60 50x2=100 100 +60 = 160

giving y = 160