1 Point
Write an equation of the form y= mx for the line shown below. If appropriate,
use the decimal form for the slope.
(-2,3)
(4, -6)

Respuesta :

Answer: [tex]y=-1.5x[/tex]

Step-by-step explanation:

The Slope-Intercept form of the equation of the line is:

[tex]y=mx+b[/tex]

Where "m" is the slope of the line and "b" is the y-intercept.

Find the slope of this line using the formula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

You can say that:

[tex]y_2=-6\\y_1=3\\x_2=4\\x_1=-2[/tex]

Substituiting values, you get:

[tex]m=\frac{-6-3}{4-(-2)}\\\\m=-1.5[/tex]

Now, you must substitute the slope and any point of the line, into  [tex]y=mx+b[/tex] and then you must solve for "b" in order to find its value. You get that this is:

[tex]3=-1.5(-2)+b\\\\3=3+b\\\\3-3=b\\\\b=0[/tex]

Since the y-intercept is 0, the line passes through the origin. Therefore,  you get that the equation of this line in Slope-Intercept form, is:

[tex]y=-1.5x[/tex]