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Find the equation of the straight line L passes through (3,-2) and (-3,4)

Sagot :

Answer:

The equation of the line in slope-intercept form:

  • [tex]\LARGE\text{\boldsymbol{\underline{y=-x+1}}}[/tex]

The equation of the line in standard form:

  • [tex]\LARGE\text{\boldsymbol{\underline{x+y=1}}}[/tex]

Step-by-step explanation:

Given:   [tex](3,-2)[/tex],   [tex](-3,4)[/tex]

Solution for the slope (m):

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

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

[tex]m=\frac{4+2}{-6}[/tex]

[tex]m=\frac{6}{-6}[/tex]

[tex]\boldsymbol{m=-1}[/tex]

Solution for y-intercept (b):

[tex]m=-1[/tex],   [tex](3,-2)[/tex]

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

[tex]-2=(-1)(3)+b[/tex]

[tex]-2=-3+b[/tex]

[tex]-2+3=b[/tex]

[tex]\boldsymbol{1=b}[/tex]

Equation of the line in slope-intercept form:

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

[tex]y=(-1)x+1[/tex]

[tex]\LARGE\text{\boxed{\boldsymbol{y=-x+1}}}[/tex]

Equation of the line in standard form:

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

[tex]y=(-1)x+1[/tex]

[tex]y=-x+1[/tex]

[tex]\LARGE\text{\boxed{\boldsymbol{x+y=1}}}[/tex]

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