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|dw:1437711852579:dw|

im not sure i understand

Can you find the slope of the first line?

im confused with the whole thing, i dont understand any of it

Ok, are you familiar with this formula?
|dw:1437712598401:dw|

Where m is slope of a line

yes!

Great! :-) Can you plug in the two points given for the first line to find the slope?

do you mean (-3,-4) & (0,-9) ?

is it y=5/3x-2 ?

Hm, I get the slope to be -5/3|dw:1437713469475:dw|

And the slope of parallel lines is equal. :-)

So, the slope of the other line is also -5/3. Making sense so far?

was i close ?

Yes, but your slope was off.

Any ideas on finding the equation of the second line, using the slope of -5/3 and the point (3,-7)

okay one question, if a slope of a line is -1/2 the slope that is parallel to it would be -2 right?

or would it be just 2?

Parallel lines have the exact same slope

so it would be -1/2 ?

Right.

Perpendicular lines have negative reciprocal slopes is what I think you were thinking about before.

Sure, can you tell what the slope of the line given is?

m=2x ?

Close, just the 2 is the slope.

okay how do i set up the equation?

We use the general formula
y=mx+b

Plug in m, and the x and y coordinate we have

|dw:1437716031316:dw|

And solve for b

Can you find b?

2(2) would turn into 4x right? would i then divide that by -1 to get b?

Close

|dw:1437716846824:dw|

|dw:1437716867087:dw|

Make sense?

Yes ! that make sense!

Awesome! So then we can plug in m and b to make
y=2x+(-6)

or y=2x-6

right !

thank you so much !!