Question

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

Answer 1

`(0,6)`

Explanation:

An ordered pair represents any point on a curve (straight line).

Let point 1 be `P_1->(x,y) = (0,y)` for equation `y=2x+6`

Then by substitution `color(brown)(P_1->y=2x+6)->color(blue)(y=2(0)+6)`

`=> P_1->(x,y)=(0,6)`

Answer 2

(0 ,6)

Explanation:

From the ordered pair (0 ,?) we are required to find the y-coordinate given that the x-coordinate = 0. Remember that the ordered pair is the coordinate point (x ,y)

To find y , given x , substitute the value of x into the equation which connects them.

x = 0 : y = 2(0) + 6 = 0 + 6 = 6

`rArr(0,?)=(0,6)`