8. Multiple Choice: Which equation is the factored form of x2 + 2x - 3 = 0?
1 answer:
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Answer:
7
Step-by-step explanation:
If a system decreases by 12% it's the same as multiplying it by .12-1 or .88
This means we can create the following equation
computer value=5300(.88)^n
where n is the number of years
We can then plug in the value of the computer and solve for n
2200=5300(.88)^n
Divide by 5300 and get
.415=.88^n
Then put this into log form and get
Evaluate this into your calculator and get n=6.69 which I would probably just round to 7
I created this using a graphing calculator website called Desmos! You can use this to further explore slopes and lines and graphing in general :)
