DiegoMath DiegoMath
  • 26-03-2019
  • Mathematics
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Write the equation in y=mx+b form please????

Write the equation in ymxb form please class=

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kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 26-03-2019

ANSWER

[tex]y = - 2x - 5[/tex]

EXPLANATION

We can use any two points to determine the slope.

The line passes through;

(-3,1) and (-5,5).

The slope is given by

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

This implies that;

[tex]m = \frac{5 - 1}{ - 5 - - 3} [/tex]

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

We can now find the equation using the formula;

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

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

Expand:

[tex]y = - 2x -6 + 1[/tex]

[tex]y = - 2x - 5[/tex]

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