Respuesta :

Answer:

The equation is y = 5x + 4.

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Step-by-step explanation:

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

☆Slope-intercept: [tex]y = mx + b[/tex]

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☆We need to find the slope first. So just plug in according to the slope formula!

[tex]m = \frac{9 - 4}{1 - 0} = \frac{5}{1} = 5[/tex]

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☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.

[tex]y = mx + b \\ 9 = 5(1) + b \\ 9 = 5 + b \\ \frac{ - 5 = - 5 \: \: \: \: \: \: \: \: \: \: \: \: }{4 = b \: \: \: \: \: \: \: \: \: } [/tex]

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☆Now all we need to do is plug in and we are done!

[tex]y = 5x + 4[/tex]

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