How do you find the y-intercept with two ordered pairs?

Answer :

Equation employing the slope-intercept method for two points

The slope-intercept version of the equation may be used to calculate the two-point Y-intercept.

The shape of a point-slope is[tex]\mathbf{Y-Y_{1} = m(X-X_{1})}.[/tex]

Steps to find the y-intercept with two ordered pairs?

Determine the slope using two points.

[tex]Slope = \frac{Y_{2}-Y_{1}}{X_{2}-X_{1}} = \frac{Rise}{Run} = \frac{\bigtriangleup Y}{\bigtriangleup X}[/tex]

As an illustration, two points are (3, 5) and (6, 11)

Slope = [tex]\frac{Y_{2}-Y_{1}}{X_{2}-X_{1}} = \frac{11 - 5}{6 - 3} = \frac{6}{3} = 2[/tex]

In the slope-intercept form of the equation, substitute the slope(m).

[tex]\\y = mx+b \\y = 2x+b[/tex]

Either point may be substituted in the equation. You may either use (3,5) or (6,11).

[tex]\\y = 2x+b \\5 = 2(3)+b[/tex]

Find the answer to the equation for b, the line's y-intercept.

[tex]\\5 \ \ \ = 2(3) + b \\5 \ \ \ = 6 + b \\\underline{-6\ = -6 \ \ \ \ \ \ \ } \\-1 = b[/tex]

Substitute b,  into the equation.

[tex]\\y = 2x + b \\y = 2x - 1[/tex]

Learn more about y-intercept with two ordered pairs from the link below

https://brainly.com/question/10708360

#SPJ4