Can someone please help me I tried to start it and came up with 7? Please help what is the slope of a line that passes through the point (-5 3) and is parallel to a line that passes through (2,13) and (-4,-11)

Question

campbell_st · Answer

ok... so the slope of the parallel line is 

$$m = \frac{13 - (-11)}{2 - (-4)}$$

just calculate it out

campbell_st · Answer

Parallel lines have the same slope... 

if you want the equation of the line use 

y = mx + b

m is the slope you just found, then substitute x = -5 and y = 3 to find b

then you'll have the equation of the line

anonymous · Answer

How do I find b?

campbell_st · Answer

ok... what did you get for m..?

anonymous · Answer

I got 7

campbell_st · Answer

nope look at this

$$m = \frac{13 - (-11)}{2 - (-4)} = \frac{24}{6} =?$$

anonymous · Answer

4 sorry

anonymous · Answer

Do I put it in the y-y1=m(X1-x) ?

campbell_st · Answer

great so the equation of the line is 

$$y = 4x + b$$

substitute x = -5 and y = 3

so 

$$3 = 4 \times -5 + b$$

what is the value of b?

campbell_st · Answer

you could use point slope form... but I always find slope intercept is easier

anonymous · Answer

So I multiply 4 & -5?

campbell_st · Answer

well if you substitute 

3 = -20 + b

so b = 23

then the equation is y = 4x + 23

anonymous · Answer

Omg I still don't get it :( thank you for helping me though

anonymous · Answer

If it's -20 + 3 wouldn't it be 17?