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What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slopeintercept form. PLEASE SHOW STEP BY STEP
 one year ago
 one year ago
What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slopeintercept form. PLEASE SHOW STEP BY STEP
 one year ago
 one year ago

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philo1234Best ResponseYou've already chosen the best response.1
First find the slope using the 2 point can you do that?
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
zero slope or unidentified slop
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
\[slope = \frac{ 4(4) }{ 1(1) }\]
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
Nope you then need to use this slope and one of the points to find the equation. plug in this formula yy1=m(xx1) (x1,y1) is taken from one of the points
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
i dont get my head is about to explode they gave me this question out of no where
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
can u show me step by step
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
So what do you have so far? m (slope)=4, choose the point (1,4), x1=1, y1=4 you should have y4=4(x1)
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
can you please just put all the steps on one reply like: 1. 2. 3. 4.
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
Step 1: Find the slope(m) = (4(4))/(1(1)) = 8/2=4
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
Step 2: Use point slope form to get equation: yy1=m(xx1), m=4, point (1,4) where x1=1, y1=4 In the pointslope equation: y1=4(x4) Do u understand these step so far?
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
Step 3: Slopeintercept form is y=mx+b So we have y1=4(x4) Solve for y (that is put y by itself on one side).
 one year ago

philo1234Best ResponseYou've already chosen the best response.1
If you did that correctly you should get: y=4x15
 one year ago
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