SOLUTION: a 25lb bag of salt cost $4.50 and a 50lb bag of salt cost $6.00 find the equation of the cost as a function of weight in slope intercept form. Also fill in the blanks below. Also d
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Question 269236: a 25lb bag of salt cost $4.50 and a 50lb bag of salt cost $6.00 find the equation of the cost as a function of weight in slope intercept form. Also fill in the blanks below. Also determine how much a 1001lb bag of salt would cost.
Y represents -
M represents -
X represents -
B represents - Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! (25,4.50) & (50,6.00)
m=(y2-y1)/x2-x1)
m=(6-4.50)/(50-25)
m=1.50/25=.3/5
Y represents -4.5 & 6
M represents -.3/5
X represents - 25 & 50
B represents -3
4.50=.3/5*25+b
4.50=7.5/5+b
4.50=1.5+b
b=4.50-1.50
b=3
Y=.3X/5+3
Y=.3/5*100+3
Y=30/5+3
Y=6+3=$9.00 for 100 lb. bag of salt.
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IF that's a 1001 lb. bag then:
Y=.3/5*1001+3
Y=3003/5+3
Y=60.06+3=$63.06 for the 1001 lb. bag of salt. (graph 300x200 pixels, x from -6 to 120, y from -10 to 10, .3x/5 +3).
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