Answer:
y = 4 · ½ˣ
Step-by-step explanation:
It passes through the point (0, 4), so:
4 = a · b⁰
a = 4
It passes through the point (2, 1), so:
1 = 4 · b²
1/4 = b²
b = ½
y = 4 · ½ˣ
Your answer is 35.75%.
Let’s pretend something at the store is $100. (It will save some math later)
100 - 35% leaves 65% (0.65 as a decimal)
100 x 0.65 = 65
That’s the price after the first discount. If we take 45% off of the sale price, we’ll be left with 55%, 0.55
65 x 0.55 = $35.75
Now normally you’d compare 35.75(sale price)/ 100(original price) to % off (x)/100, but doe this example, it’s unnecessary.
35.75/100 = x%/100
This graph is the correct one
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Step-by-step explanation:
