f is a quadratic function whose graph is a parabola opening upward and has a vertex on the x-axis. The graph of the new function
2 answers:
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Answer:
$599
Step-by-step explanation:
Given: Discount- 40% off on original price.
Gift card= $25
Total cost before taxes is $334.40
Lets assume the original price be "x".
We know there is 40% on original price and Perry uses $25 gift card.
Remember; Total cost=
Now, finding the original price of Iphone.
⇒
⇒
Adding both side by 25
⇒
⇒
Dividing both side by 0.60
⇒
∴
Hence, the original price of iphone is $599