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

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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)#