Answer:
Top left
Step-by-step explanation:
In order for it to be a function, it has to pass the vertical line test. So draw a line down the middle of the graphs. If it passes once, then it is a function, if it passes more than once it is not.
formula: 60x4(to the power of 20)
quadrilateral
Click on the screenshot, I labeled the parts
Hope this helps :))
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