What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slope-intercept form

Question

lgbasallote · Answer

well..there is such an equation known as..

y-y1 = [(y2-y1)/(x2-x1)](x-x1)

x1 = -1
y1 = -4
x2 = 1
y2 = 4

substitute the values then transform to slope-intercept...

which of the steps did you find confusing??

anonymous · Answer

no idea what you just said

anonymous · Answer

$$\LARGE y-y_1=\frac{y_2-y_1}{x_2-x_1}\cdot (x-x_1)$$
you have:
$$\LARGE (\underbrace{-1}_{x_1}\;\;\;,\;\;\;\underbrace{-4}_{y_1})$$ 
$$\LARGE (\underbrace{1}_{x_2}\;\;\;,\;\;\;\underbrace{4}_{y_2})$$ 
now substitute...

anonymous · Answer

whattttt?

anonymous · Answer

@xitskaylee23 you should be able to do it now, I don't see anything confusing.

anonymous · Answer

unless if you don't even have the idea about these problems,and just asked to see if someone will do it for you.... !

anonymous · Answer

yup, im totally lost. im cyber schooled and its hard trying to learn geometry on your own

anonymous · Answer

well then I suggest you to google these problems... there you'll find tons of them (examples) http://www.analyzemath.com/line/Tutorials.html