Question 1197779
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Hint:
Here is the graph of y = -9x+11
{{{graph(400,400,-5,5,-5,16,0,-9x+11)}}}
Notice it stretches forever to the left and right, also it stretches forever upward and downward.


And here is the graph of y = 40-8x^2
{{{graph(400,400,-10,10,-50,50,0,40-8x^2)}}}
The vertex point (highest point in this case) is located at (0,40)
The parabola stretches forever to the left and right.


Another hint:
Domain = set of all allowed x inputs
Range = set of all possible y outputs
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