Write the Equation of the Graph

[horsewoman27]

The points are at (-8,-6) and (0,0). I always get stuck when it comes to graphs can someone help me.

 

[Aladdin]

I think you meant , write the equation of the line passing through the two points ?

 

[horsewoman27]

write the equation of the line passing through the two point

You are correct, thanks for the clarification

 

[masters]

The points are at (-8,-6) and (0,0). I always get stuck when it comes to graphs can someone help me.

Hi horsewoman27,

The line passing through these two points has a y-intercept of 0 since it passes through the origin.

The slope is \(\displaystyle \frac{\Delta y}{\Delta x}\) which translates to \(\displaystyle \frac{-6-0}{-8-0}=\frac{3}{4}\)

The slope-intercept form of a linear equation is \(\displaystyle y=mx+b\), where m is the slope and b is the y-intercept.

Need I say more?

 

[Deleted member 4993]

General equation of a straight-line passing through (x[sub:l3fn95hq]1[/sub:l3fn95hq],y[sub:l3fn95hq]1[/sub:l3fn95hq]) and (x[sub:l3fn95hq]2[/sub:l3fn95hq],y[sub:l3fn95hq]2[/sub:l3fn95hq]) is:

\(\displaystyle \frac{y \ - \ y_1}{y_2 \ - \ y_1} \ = \ \frac{x \ - \ x_1}{x_2 \ - \ x_1}\)