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anonymous
 one year ago
Eric has a gift card to his favorite restaurant. Every Tuesday he has the same meal at the restaurant.
What is the equation that represents Eric’s gift card balance? Record any fractional answers in decimal form.
(y – 100) = ? (x – ?)
Eric’s Gift Card
Weeks 2 4 6 8
Balance $125 $100 $75 $50
anonymous
 one year ago
Eric has a gift card to his favorite restaurant. Every Tuesday he has the same meal at the restaurant. What is the equation that represents Eric’s gift card balance? Record any fractional answers in decimal form. (y – 100) = ? (x – ?) Eric’s Gift Card Weeks 2 4 6 8 Balance $125 $100 $75 $50

This Question is Closed

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1find the slope firstly. these are your points basically : (2, 125) , (4, 100) , (6, 75) , (8, 50) So pick any of the two points and then use m = y2  y1/ x2  x1 to find the slope

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1yeep, so tell me when you find what m = ? :)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1so like let's use these two points: dw:1436369113331:dw

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1correct! but the question tells you to change fractions to decimals

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1good ^_^. so, m = 12.5 Now we have to look back at the pointslope formula: \[y  y_1 = m ( x  x_1) \] we know that: dw:1436369770454:dw so we know m = 12.5 , x1 = 4, y1 = 100 so plug these values into the pointslope formula and you'll get your answer :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[y100=12.5(x4)\]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1yippeeee~ Fantastic job :)!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yay! Thank You So Much! :)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1no problemooooooo :D!
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