What is the equation of this line? y=12x−3 y=−12x−3 y=−2x−3 y=2x−3 Number graph ranging from negative 5 to 5 on both the x and y axis. A line passes through the point begin ordered pair 0 comma negative 3 end ordered pair and the point begin ordered pair 4 comma negative 1 end ordered pair

Respuesta :

We are given that

A line passes through two  points as

(0,-3)  and (4,-1)

[tex](x_1,y_1)=(0,-3)[/tex]

[tex]x_1=0,y_1=-3[/tex]

[tex](x_2,y_2)=(4,-1)[/tex]

[tex]x_2=4,y_2=-1[/tex]

Firstly, we can find slope

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

now, we can plug values

[tex]m=\frac{-1+3}{4-0}[/tex]

[tex]m=\frac{2}{4}[/tex]

[tex]m=\frac{1}{2}[/tex]

now, we can use point  slope form of line

[tex]y-y_1=m(x-x_1)[/tex]

we can plug values

[tex]y+3=\frac{1}{2} (x-0)[/tex]

[tex]y+3=\frac{1}{2}x[/tex]

[tex]y=\frac{1}{2}x-3[/tex]

so, the equation of line is

[tex]y=\frac{1}{2}x-3[/tex]...............Answer