anonymous
  • anonymous
Please help? Write an equation of the line, in point-slope form, that passes through the two given points. points: (–2, 15), (9, –18)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
can you calculate the slope of the line passing through those two points? use: \(\Large slope=m=\frac{y_2-y_1}{x_2-x_1} \)
anonymous
  • anonymous
do you know how to use the slope formula?
anonymous
  • anonymous
would the answer be y-15=-3(x+2)

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anonymous
  • anonymous
yep...:)
anonymous
  • anonymous
of course, the answer is not unique... you could've also used the other (9, -18).... :)
anonymous
  • anonymous
*other point (9, -18)
anonymous
  • anonymous
thank you so much! do you mind helping?
anonymous
  • anonymous
i have one more
anonymous
  • anonymous
go ahead and post up a new question.... i don't think open study will run out of hard drive space anytime soon.
anonymous
  • anonymous
What is the equation of the given line in standard form? Use integer coefficients. y = –1.7x + 8.5
anonymous
  • anonymous
this is standard form: Ax + By = C, where A, B, C are integer coefficients... so in your slope-intercept form, we need to clear the decimals by multiplying by the whole equation by 10... \(\Large y = –1.7x + 8.5 \) \(\Large \color {red}{10}[y = –1.7x + 8.5] \) can you tell me what youd get here?
anonymous
  • anonymous
17x + 10y = 85 ?
anonymous
  • anonymous
u got it.... :) nice job..

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