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

Question

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 · Answer

@butterflydreamer

butterflydreamer · Answer

find 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

anonymous · Answer

okay

butterflydreamer · Answer

yeep, so tell me when you find what m = ? :)

butterflydreamer · Answer

so like let's use these two points:
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