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Dennis_Churaev [7]
4 years ago
5

A hardware store sells light bulbs in different quantities. the graph shows the cost of various quantities. according to the gra

ph, what is the cost of a single lightbulb?

Mathematics
1 answer:
geniusboy [140]4 years ago
4 0

step 1

find the equation of the line

where

x-------> numbers of light bulbs

y-------> the total cost in $


let

A (0,0) B (10,18)

slope m=18/10-----> m=1.8


step 2

with m=1.8 and the point A (0,0)

y-y1=m*(x-x1)------> y=1.8x


step 3

for x=1

y=1.8*1------> y=$1.8


therefore


the answer is

the cost of a single light bulb is $1.8



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