Question

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

Answer 1

First find the slope using the 2 point can you do that?

Answer 2

yes

Answer 3

What did you get?

Answer 4

zero slope or unidentified slop

Answer 5

\[slope = \frac{ 4-(-4) }{ 1-(-1) }\]

Answer 6

that's all

Answer 7

Nope you then need to use this slope and one of the points to find the equation.
plug in this formula y-y1=m(x-x1) (x1,y1) is taken from one of the points

Answer 8

ok then what

Answer 9

i dont get my head is about to explode they gave me this question out of no where

Answer 10

can u show me step by step

Answer 11

So what do you have so far?
m (slope)=4, choose the point (1,4), x1=1, y1=4
you should have y-4=4(x-1)

Answer 12

can you please just put all the steps on one reply like: 1. 2. 3. 4.

Answer 13

Step 1: Find the slope(m) = (4-(-4))/(1-(-1))
= 8/2=4

Answer 14

ok step 2

Answer 15

Step 2: Use point slope form to get equation: y-y1=m(x-x1), m=4, point (1,4) where x1=1, y1=4

In the point-slope equation: y-1=4(x-4)
Do u understand these step so far?

Answer 16

yes

Answer 17

Step 3: Slope-intercept form is y=mx+b
So we have y-1=4(x-4)
Solve for y (that is put y by itself on one side).

Answer 18

If you did that correctly you should get: y=4x-15

Answer 19

ohhh thanks man

Answer 20

ill give u a medal

Answer 21

Sure no problem.