You'd want to use a vertical line test.
1st image: Every vertical line cuts the graph at at most one point
2nd image: The vertical line x = 1 cuts the graph at more than one point
3rd image: The vertical line x = 1 cuts the graph at 2 points
4th image: The vertical line x = -2 cuts the graph at 2 points
Hence, graph 1 (1st image) is a function.
For those who are looking for the answer, i just did the test, and got this question right. The answer is the second option: an<span> = 10(1/2</span>)n − 2<span>; average rate of change is negative thirty five thirds. Hope this helps you all, and good luck.</span>
<span>-9x ≥ 27
9x <= -27
x <= -3
hope it helps</span>
Yo sup??
the truth table value for p implies q is true and it's given that q is true
Hence p is sometimes true.
Hope this helps