Question

I need help with the following problems:

1.) Write the equation of the horizontal or vertical line: (3, -4), slope is undefined

2.) Find the equation of a line parallel to the given line: y = 2x + 4.

3.) Write an equation in slope-intercept form for an equation of a line perpendicular to y = 24x +2 and that intersects at point (0, -2).

Answer 1

Do you understand slope intercept form? y=Mx+B?
Do you understand what slope is?

Answer 2

i was taught it, but i don't even remember it lol

Answer 3

Okay well then we should start by understanding slope.
Slope is a way of describing how steep a line is. A steeper hill is harder to walk up, and has a higher slope. A downhill is very easy to walk down, and has a negative slope which is bigger the steeper downward it is. It's the same with lines.

Answer 4

k...

Answer 5

1. y=3
2. y=2x+8 (same slope different intercept)
3. y=-1/24 x -2 (perpendcular lines have inverse slope)

Answer 6

So the question with slope is, "If I walk to the right some amount, how much will I go up?"
This is called "Rise over run"
To calculate it, I look at my line, pick two points, and then ask, "How much did I rise from the left point to the right point?" And then ask "How much did I go over from the left point to the right point?"
The I take the first number and divide by the second number to get slope.