1 Answer

Matt Rickard · Answer 1 · 2020-11-09T16:08:23+0000

Answer: (8,5)

Explanation:

1. You have that each point of a function has coordinates (x,y), then, you can substitute the value of x of each point shown in the options to obtain the y.

2. You can rewrite the function as following:

$y=8-\sqrt[3]{x}$

Then:

x=-64

$y=8-\sqrt[3]{-64}=12$

(-64,12) lies on the graph

x=125

$y=8-\sqrt[3]{125}=3$

(125,3) lies on the graph

x=343

$y=8-\sqrt[3]{343}=1$

(343,1) lies on the graph

x=8

$y=8-\sqrt[3]{8}=6$

The point obtained is (8,6), therefore (8,5) does not lie on the graph.

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