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lord [1]
3 years ago
10

F (x) = -2x + 1, find f (1/2)

Mathematics
2 answers:
Vesnalui [34]3 years ago
6 0

Answer:

f(1/2)=0

Step-by-step explanation:

So we have the function:

f(x)=-2x+1

And we want to find f(1/2).

So, substitute 1/2 for x:

f(1/2)=-2(\frac{1}{2})+1

Evaluate. Multiply:

f(1/2)=-1+1

Add:

f(1/2)=0

So, our answer is:

f(1/2)=0

And we're done!

Sergio [31]3 years ago
5 0
The answer is 0
-2(1/2)+1 =0
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Ghella [55]

Answer:

(-2, 6)

Step-by-step explanation:

we have

y=x^{2} +3x+8 ----> equation A

y=2x+10 ----> equation B

equate equation A and equation B

x^{2} +3x+8=2x+10

x^{2} +3x+8-2x-10=0

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The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2} +x-2=0

so

a=1\\b=1\\c=-2

substitute in the formula

x=\frac{-1\pm\sqrt{1^{2}-4(1)(-2)}} {2(1)}

x=\frac{-1\pm\sqrt{9}} {2}

x=\frac{-1\pm3} {2}

x=\frac{-1+3} {2}=1

x=\frac{-1-3} {2}=-2

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For x=1

y=2(1)+10=12

For x=-2

y=2(-2)+10=6

therefore

The solutions are (1,12) and (-2,6)

3 0
3 years ago
I need help I’m stuck
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Step-by-step explanation:

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Please help I need this done by tonight!!
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Answer:

answer is 10

Step-by-step explanation:

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