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OpenStudy (kmullis6):
OpenStudy (kmullis6):
Is it 1?
OpenStudy (anonymous):
in other words what is the value of y when x=1
F(1)=??
OpenStudy (anonymous):
When the value of the horizontal line is 1, what is the value of the vertical line? that's the answer
OpenStudy (kmullis6):
Being that 1 is on the line, it's 0 right?
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OpenStudy (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?
OpenStudy (anonymous):
when x=1 isn't y=-2
OpenStudy (kmullis6):
1, -2
OpenStudy (anonymous):
F(1)=-2
OpenStudy (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.
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OpenStudy (anonymous):
yeah both of you are correct
so when x=1, y=-2
OpenStudy (anonymous):
which is the same as saying f(1) = -2
OpenStudy (kmullis6):
Oh ok. Sorry, I didn't take enough time to look at it. I thought it was the 1 on the line. /: