How do you complete the ordered pair (?, 0) given y = 2x + 6?

Question

3934 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-04-23T09:30:18

$(?,0)->(x,y)->(-3,0)$

The use of the term ordered pair it means $(x,y)->(?,0)$

So the 0 is the value for $y$ .

Given: $" "y=2x+6$

Substituting the known value of 0 for y gives

$" "0=2x+6$

Subtract 6 from both sides

$0-6=2x+6-6$

$-6=2x+0$

Divide both sides by 2 giving:

$-6/2=2/2 xx x$

But $2/2=1" and "-6/2=-3$ giving:

$-3=x$

$x=-3$

Now we have the value of x which is the value for the ? in (?,0)

Thus $" "(?,0)->(-3,0)$