How do I evaluate functions from graphs?
Answer
In order to evaluate a function using a graph you'd have to find the given x-value. Once you have found the x-value you would then have to move vertically to the graphs curve and find the corresponding output. The points shows (x, y) as an ordered pair to help with graphing. Once you identified the input(x-value) next you would have to find the output(y-value) from the point where you hit the graph. Now that you have the input and output you state the results in which the y-value is your functions output.
Links & Files
- https://www.youtube.com/watch?v=Ug2PDP3zKyk Opens in new window
- https://www.youtube.com/watch?v=hHeh2-R25XA Opens in new window
- https://www.youtube.com/watch?v=eBD2TZUh5VI Opens in new window
- function-notation-and-a-graph.webp
- function-notation-and-a-graph-example-2.webp
- using-a-rule-to-evaluate-a-function.webp