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Mathematics 14 Online
OpenStudy (abbycross167):

Can someone please help me? I really need help.... What would the slope of the graph that goes through the two points (0, -4) and (-8, -4) be (show your work)? What would this graph look like? What should the equation of this line be?

OpenStudy (anonymous):

slope interseft form

OpenStudy (anonymous):

\[-4-0|-8+4\]

OpenStudy (abbycross167):

I'm a little confused...

OpenStudy (anonymous):

\[slope= y2-y1/x2-x1\]

OpenStudy (abbycross167):

okay so slope = -4- -4/-8--4?

OpenStudy (anonymous):

yes

OpenStudy (abbycross167):

okay then what do i do?

OpenStudy (anonymous):

u going to solve

OpenStudy (abbycross167):

... how do i do that?

OpenStudy (anonymous):

whats -4 minus 4

OpenStudy (anonymous):

-4minus -4 is

OpenStudy (abbycross167):

0

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

i got this @mathmale

OpenStudy (mathmale):

You need to find the slope of a line that goes thru both points. You could identify one point as \[(x _{1},y _{1}) ~and~the~other ~as~ (x _{2}-y _{2}).\]

OpenStudy (abbycross167):

so then would i do -8- (-4)?

OpenStudy (mathmale):

The slope of this line is then defined as\[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

OpenStudy (mathmale):

I would like for you to identify x1, y1, x2 and y2. Substitute these values into the above formula for slope. If you are showing division, you must enclose the divisor inside parentheses.

OpenStudy (anonymous):

\[m=y2-y1/x2-x1\]

OpenStudy (anonymous):

that is the formula mathmale

OpenStudy (mathmale):

So, Abby, what is the slope of this line? Please share all your work; I could give you most effective feedback if you do. Thank you for typing out the formula for slope. If you are to show division using the ' / ' symbol, you MUST enclose both numerator and denominator within parentheses. This is why I am over-ruling @usercode3rror. Please type out the formula for slope, m, again, this time using parentheses as necessary.

OpenStudy (anonymous):

\[m=(y2-y1)\div(x2-x1)\]

OpenStudy (anonymous):

better?

OpenStudy (mathmale):

Yes, but I asked Abby to do that, not for you to do that. But anyway. Abby, please find the slope of the line connecting the two given points, using this formula for slope that includes the parentheses.

OpenStudy (anonymous):

sorry bout that @mathmale

OpenStudy (mathmale):

Abby? Still involved?

OpenStudy (mathmale):

Your choice. Better to finish the problem solution now than to postpone it. At least that's my opinion.

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