Question

26. Use the table above to graph the function y=2x-2 with the domain {1,2,3}


27. What is the range of the function from questions 25 and 26?

Answer 1

Okay,

the x values are on the ‹——› line.

the y values are on the | line

Where the darkest + happens, the very center is ∅, 0 for both x and y.

So, for each pair you found in 25, draw them on 26.

For (x=1,y=0): go 1 space to the right from ∅, the y value is 0 so just draw a dot on the _ line 1 space from ∅.

For (x=2,y=2): go 2 spaces to the right from ∅, the y value is 2 so, from that spot you just moved to, go 2 spaces up |, draw a dot.

For (x=3, y=4): go 3 spaces to the right from ∅, the y value is 4, so from where you just got to, go 4 spaces up |, draw a dot.

Now draw a straight line connecting the three dots.

The range means the y values.

What are the y values in your table?

The range is {0,2,4}