Indicate in standard form the equation of the line passing through the given points.

E(-2, 2), F(5, 1)

Question

Indicate in standard form the equation of the line passing through the given points.

E(-2, 2), F(5, 1)

anonymous · Answer

show answer step by step please :Dplease help!!!

lgbasallote · Answer

use the formula $$\large y - y_1 = \frac{y_2 - y_1}{x_2 - x_1} (x - x_1)$$ need any more help?

anonymous · Answer

yup :/

lgbasallote · Answer

okay...y1 means y coordinate of the first ordered pair
x1 is the x coordinate of the first ordered pair
x2 is the x coordinate of the second ordered pair
y2 is the y coordinate of the second ordered pair

now do you know how to do it?

anonymous · Answer

is it -1/3?

lgbasallote · Answer

denominator would be 5 - (-2) = 5 + 2

lgbasallote · Answer

your numerator is correct

anonymous · Answer

so...-1/7

anonymous · Answer

what do i do next?.. dont i have to put it    x+yb=b form?

lgbasallote · Answer

-1/7 is just the slope the y2 - y1/x2 - x1 part

remember i wrote y - y1 and x - x1

zepp · Answer

@seashell, sorry, I was helping somebody else when you mentioned me :s

anonymous · Answer

its ok:D

lgbasallote · Answer

$$y - y_1 = -\frac{1}{7} (x - x_1)$$ what's your y1 and x!?

anonymous · Answer

2 and -2

lgbasallote · Answer

2 is y1 -2 is x1

$$y - 2 = -\frac{1}{7} (x +2 )$$ ^x+ 2 because x - (-2) = x + 2

now multiply both sides by 7 to get rid of the fraction

zepp · Answer

http://openstudy.com/users/zepp#/updates/4fa3474fe4b029e9dc34125e Refer to this guide! :D

zepp · Answer

Situation 4 :)

anonymous · Answer

how do i do that...

lgbasallote · Answer

if you multiply both sides by 7 you'll get $$7(y - 2) = -1(x +2)$$

lgbasallote · Answer

simplify that by distribution