magan
Evaluate f(x) = x 2 + 1 for f(1).
a.0
b.undefined
c.2



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SnuggieLad
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Do this the same way you did it before. X=1...put 1 in for x in that problem

SnuggieLad
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(1)*2+1

SnuggieLad
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or also written it is 2(1) + 1

Hero
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2
f(x) = x^2 + 1
f(1)= (1)^2 + 1
= 1 + 1
= ?

SnuggieLad
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Hold on? Is that a square root? Be sure to write that out next time

SnuggieLad
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Well done @Hero

Hero
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2
Its \(f(x) = x^2 + 1\)
Sometimes when students copy and paste, they forget to add the caret.

magan
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ok so the answer is 2 thanks a lot

SnuggieLad
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Yes, I should have picked up on that.

magan
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can you guys help me with one more its
Evaluate f(x) = x^ 2 + 1 for f(10).
a.2√2
b.101
c.21

Hero
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f(x) = x^2 + 1
f(10) = (10)^2 + 1
= 100 + 1
= ?

magan
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what about this one?
If f(x) = x 2 + 1 and g(x) = 3x + 1, find [f(2)g(1)] 2.
a.1
b.2
c.9

Hero
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2
I thought you said you only had one more....You tricked me :)

magan
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sorry...lol this is the last one.

Hero
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f(2)  g(1) = (2)^2 + 1 (3(1) + 1)
= 4 + 1  3  1
= 5  4
= ?

magan
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thanks