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- kmullis6

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- kmullis6

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- kmullis6

- kmullis6

Is it 1?

- anonymous

in other words what is the value of y when x=1
F(1)=??

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- anonymous

When the value of the horizontal line is 1, what is the value of the vertical line? that's the answer

- kmullis6

Being that 1 is on the line, it's 0 right?

- anonymous

okay, so the horizontal line consists of x values and vertical line consists of y values. Take a look at the final dot. Can u read the coordinates of the last dot?

- anonymous

when x=1 isn't y=-2

- kmullis6

1, -2

- anonymous

F(1)=-2

- mathstudent55

f(1) is function notation.
It is the same as asking, in function f, when x = 1, what is the y-coordinate?
Look in your graph.
There are 4 points you can see. Look for the point that has 1 as its x-coordinate, and read what its y-coordinate is.

- anonymous

yeah both of you are correct
so when x=1, y=-2

- anonymous

which is the same as saying f(1) = -2

- kmullis6

Oh ok. Sorry, I didn't take enough time to look at it. I thought it was the 1 on the line. /:

- anonymous

That's okay, glad we could help you

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