SOLUTION: A vendor has learned that, by pricing pretzels at $1.00, sales will reach 92 pretzels per day. Raising the price to $1.50 will cause the sales to fall to 72 pretzels per day. Let y

Question 1084771: A vendor has learned that, by pricing pretzels at $1.00, sales will reach 92 pretzels per day. Raising the price to $1.50 will cause the sales to fall to 72 pretzels per day. Let y be the number of pretzels the vendor sells at x dollars each. Write a linear equation that models the number of pretzels sold per day when the price is x dollars each.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You want to plot [ number of pretzels/day ] on the vertical axis
and [ price / pretzel ] on the horizontal axis
-----------------------------------------
You are given 2 points, which are:
( 1, 92 )
( 1.5, 72 )
Use the general point-slope formula to get the equation

Multiply both sides by

--------------------------
check:
does it go through ( 1,92 ) ?

and
does it go through ( 1.5, 72 ) ?

OK
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