How many points need to be removed from this graph so that will be a function?

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The answer is you have to remove 4 points.

There is 6 points in all and for a function it only needs two points to become a function. A function needs to be a that line that passes the vertical line test. For example: A circle is not a function because when you perform the vertical line test you'll see that many points share a common x-value and a function needs only one output in every input.

b. astronomers

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94