also would this discribe th situation "ben had 12 cookies, he ate one very other day." if not what does
2006-11-09 04:08:53 · 9 answers · asked by moneyman$$ 2 in Science & Mathematics ➔ Mathematics
slope is equivalent to dy/dx = y'
y = x -1
dy/dx = dx/dx -0
dy/dx = 1
y' = 1
Therefore the slope of the given equation is 1.
2006-11-09 04:21:46 · answer #1 · answered by The young Merlin 4 · 2⤊ 0⤋
Your equation is already in slope-intercept form so the slope is 1. For the second part of your question, the answer is no. Let's look at the situation and think about y being the number of cookies and x being the number of days. He's eating one cookie every other day. Thus, y decreases by 1 as x increases by 2. On day zero, he starts with 12 cookies. By day 2, he has 11. Day 4, 10 and so on. So, our slope is -1/2 and our y-intercept is 12. Thus, our equation for this situation is:
y = (-1/2)x + 12.
2006-11-09 04:19:08 · answer #2 · answered by iuneedscoachknight 4 · 1⤊ 0⤋
Two ways for the slope:
1) rise/tread - plot graph and count squares up and divide by squares along, on any stretch of the graph
2)y=mx+c
here, m is the gradient, and for this equation, m=1
y=1x+(-1)
therefore slope has value 1
It would describe the situation if
y is number of cookies now
x is number of cookies before
2006-11-09 04:18:13 · answer #3 · answered by Anonymous · 1⤊ 0⤋
The slope-intercept form:
y=mx+b
In your problem, since slope=m, the answer would be 1.
As for the cookie situation, it fits correctly into the equation.
2006-11-09 04:29:23 · answer #4 · answered by Anonymous · 0⤊ 0⤋
In the equation
y=mx+c
m=slope
c=intercept on y-axis
from inspection
slope of line
y=x-1
m
=slope
=1
2006-11-09 04:50:34 · answer #5 · answered by openpsychy 6 · 1⤊ 0⤋
y= mx +c
slope = co-efficient of x =m
in this case it is 1
This equation does describe the situation of cookies total number of cookies left =y. Number of cookies before eating is represented by x. As he eats a cookie he's taking one away this is represented by the -1
mmmmm...cookies..... =)
2006-11-09 04:22:28 · answer #6 · answered by anonymous 2 · 1⤊ 0⤋
The canonical form of a straight line is y = mx + b where m is the slope.
Comparing with the canonical form you get m = 1
2006-11-09 04:15:00 · answer #7 · answered by Dr. J. 6 · 1⤊ 0⤋
y = mx + b ; m = slope, b = y-intercept
y = mx + (-1)
m = 1 --> y = x -1
I'm not sure what you mean by the second part of your question.
2006-11-09 04:26:08 · answer #8 · answered by pzampino 1 · 1⤊ 0⤋
compare with y=mx+b
slope =1
2006-11-09 04:11:15 · answer #9 · answered by raj 7 · 2⤊ 0⤋