Question

Can someone tell me what I'm doing wrong here? I like.. just did everything I had to do.. I don't see how 1/2 is the answer
http://prntscr.com/7eemx3

Answer 1

Solve for y to get

\[\Large 2x - 4y = 10\]
\[\Large 2x - 4y{\color{red}{-2x}} = 10{\color{red}{-2x}}\]
\[\Large -4y = -2x+10\]
\[\Large \frac{-4y}{{\color{red}{-4}}} = \frac{-2x+10}{{\color{red}{-4}}}\]
\[\Large \frac{\cancel{-4}y}{\cancel{-4}} = \frac{-2x}{-4}+\frac{10}{-4}\]
\[\Large y = \frac{1}{2}x - \frac{5}{2}\]


The last equation is in the form y = mx+b where the slope is m = 1/2

Answer 2

Wow.. Thank you. :) I was totally off track xD Thank you for explaining. c:

Answer 3

Your method would work only if you had 2 points. But you had the right idea somewhat

Answer 4

Also, the two points are (5,0) and (0,-2.5)

notice how the 2.5 is negative

Answer 5

and the slope formula is

\[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

the y difference is up top. So you had that mixed up as well

Answer 6

Oh, I didn't know that x) Thanks again c:

Answer 7

no problem