2006-10-15 12:57:18 · 5 answers · asked by mzmuffin40155 2 in Education & Reference ➔ Homework Help
the first one does and the second doesn't
2006-10-15 12:59:39 · answer #1 · answered by raj 7 · 0⤊ 0⤋
As someone else said, the first one does, and the second doesn't. In addition to writing it in slope/intercept form like the first responder said, you can save yourself time by using the formula m = -A/B (negative A over B) when your line is in the form Ax + By = C. So the slope of the first is 3/-7 and the slope of the second is -3/-7 or 3/7.
2006-10-15 20:15:31 · answer #2 · answered by dmb 5 · 0⤊ 0⤋
Get your equations in the form of y = mx + b, then you can inspect it and see for yourself, depending on the sign of m. I'll do the first one for you to show you:
-3x - 7y = 21
add 3x to both sides, to get:
-7y = 3x + 21
divide both sides by -7, to get:
y = -(3/7)x - 3
So in this case, the line as a negative slope of -3/7
Do similar work to your second equation to see that it has a positive slope.
~ dualspace ~
2006-10-15 19:58:55 · answer #3 · answered by dualspace 3 · 0⤊ 0⤋
haha doing homework online!! Well it doesnt have a negative wlope the 2 negs cancle!!
2006-10-15 20:02:16 · answer #4 · answered by Caitlyn 2 · 0⤊ 0⤋
helping make america dumber
2006-10-15 20:04:20 · answer #5 · answered by halicon2000 4 · 0⤊ 0⤋