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anonymous
 4 years ago
Find an equation of the line through the given points. Write the equation in standard form.
Through (7, 5) and (0, 3)
Choose one answer.
a. 12x + 3y = 9
b. 2x + 7y = 21
c. 2x + 7y = 21
d. 12x  3y = 9
anonymous
 4 years ago
Find an equation of the line through the given points. Write the equation in standard form. Through (7, 5) and (0, 3) Choose one answer. a. 12x + 3y = 9 b. 2x + 7y = 21 c. 2x + 7y = 21 d. 12x  3y = 9

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Did you change your screen name, or many people use this same picture?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0b. plug in (7, 5) and (0, 3) to each equation

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0First find slope, which is: (y2y1)/(x2x1) = (3+5)/(07) = 2/7. Then, find yintercept in the equation y = 2x/7 + b (where b is yintercept) using one of the points.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0* and if its the solution you'll get the RHS

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Then you can rearrange into slope intercept. Alternatively, you can derive the equation yourself like GT posted.

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0Equation of a line passing through two point (x2, y2) and (x1, y1) is given by \[ (yy2)/(xx2)=(y2y1)/(x2x1)\] \[ (x2, y2)= (7, 5)\] \[ (x1, y1)= (0, 3)\] \[(y+5)/(x7)=(5+3)/(70)\] \[(y+5)/(x7)=2/7\] \[7y+35=2x+14\] \[2x+7y=21\] option B
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