Mathematics
MaddyA27
38

A line passes through the (1,-5) and (-3,7). Write an equation for the line in point slope form. Rewrite the equation in slope intercept form

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(1) Answers
nikolak

[latex]m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{7 - (-5)}{-3 - 1} = \frac{7 + 5}{-3 - 1} = \frac{12}{-4} = -3[/latex] [latex]y - y_1 = m(x - x_1)[/latex] [latex]y - (-5)= -3(x - 1)[/latex] [latex]y + 5 = -3(x) + 3(1)[/latex]. [latex]y + 5 = -3x + 3[/latex] [latex]y + 5 - 5 = -3x + 3 - 5[/latex] [latex]y = -3x - 2[/latex]

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