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26 votes
Can someone please explain how this is correct? I'm very confused

Can someone please explain how this is correct? I'm very confused-example-1
User MTplus
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1 Answer

15 votes
15 votes

Answer: see below

Explanation:

The table is based on the rule y=-2x+5

let's use the last numbers as an example. x=10 and y= -15

since we know the values of x and y, we can substitute them into the rule equation

-15=-2(10)+5, see how I replaced y with 15 and x with 10?

Now we solve and see if they match.

-15=-20+5

-15=-15

since they match, they are correct.

Basically, replace x in the rule with the x values in the table, and if the y value is the same as the y value in the table, it is correct.

User R World
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