Question

Power’s Flower Shop charges a certain price per long-stemmed rose and a flat delivery fee. If 15 rose’s delivered costs $65 and 24 rose’s delivered costs
$92, how much will 36 rose’s delivered cost?

Answer 1

please help.:(

Answer 2

Ok so think of these as coordinates on a graph, (15,65) and (24,92)

can you find the slope between these two points?

Answer 3

between them? what do you mean.. i can find the slope of them, by using point slope formula..
is that wha tyou mean?

Answer 4

Well you find the slope using (y2-y1)/(x2-x1)

Answer 5

right

Answer 6

I know that.

Answer 7

Ok, so whats the slope?

Answer 8

hold on

Answer 9

27/14

Answer 10

Should be

(92-56)/(24-15)
27/9
3

Answer 11

So now you use your point slope form to get the equation

y-y1=m(x-x1)

Answer 12

ok... then what?

Answer 13

Then you'll input 36 in for x to figure out the cost

Answer 14

hold on

Answer 15

y=3x+20

Answer 16

so now i plug 36 in?

Answer 17

128

Answer 18

Right

Answer 19

ko thank you so much