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BigorU [14]
3 years ago
13

Explain how you can use the graph of the quadratic function f(x) to solve the equation f(x)=0

Mathematics
1 answer:
Whitepunk [10]3 years ago
6 0
F(x)=0
f(x)=y
so where y=0, the x value is the x in f(x)
basically, where the line crosses or touches the x axis, those ar the x values that make the function true
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Log 15 (2x − 2) = log 15 (x+9)
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Answer:

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Step-by-step explanation:

Given the equation

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Note that

2x-2>0\\ \\2x>2\\ \\x>1

and

x+9>0\\ \\x>-9

Combined, x>1

Solve the equation:

2x-2= x+9\\ \\2x-x=9+2\\ \\x=11

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:


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