How do you find the slope of a line when the line doesn't have any coordinates? I know that the slope of a line is the coefficient of x in the equation but what is a coefficient? I already know what a y-intercept is, but I don't know how to find the slope. =D
2006-11-19 04:45:45 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Coefficient means the number in front of a variable. In the equation
y = 5x - 3, 5 is the coefficient of x, and therefore is the slope.
y = x + 4 the coefficient of x is 1
y = 3x/4 + 11 the coefficient of x is 3/4
etc
Just be sure y is by itself at the beginning of the equation
example if you have 4x + 5y = 20, you must subtract 4x from both sides then divide by 5 to get
y = -4x/5 + 4 coefficient of x is -4/5
2006-11-19 04:50:50 · answer #1 · answered by hayharbr 7 · 0⤊ 0⤋
In the general form of a line, y=mx+c, where m and c are the coefficients (constants), m is the slope, c is the y-intercept. If your equation is not in this form to start with, rewrite it in this form.
2006-11-19 12:51:01 · answer #2 · answered by Sangmo 5 · 0⤊ 0⤋
In order to find the slope of a line you need to know at least two points on the line, that way you can get the slope this way:
m = (Y-Yo)/(X-Xo)
where m is the slope, (X,Y) is the first point and (Xo,Yo) is the second point.
Hope this helps.
2006-11-19 12:51:13 · answer #3 · answered by mensajeroscuro 4 · 0⤊ 0⤋
y = mx + b
This is the standard equation of a line. m = slope and b is the intercept.
2006-11-19 12:55:29 · answer #4 · answered by ve1luv 2 · 0⤊ 0⤋
The slope m
m=y2-y1/x2-x1
2006-11-19 13:22:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋
coefficient is the number in front of the variable
2006-11-19 12:51:19 · answer #6 · answered by raj 7 · 0⤊ 0⤋
you can't. Y-int is where the line intersect the Y-axes
2006-11-19 12:49:01 · answer #7 · answered by 7 · 0⤊ 0⤋
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2006-11-19 12:52:42 · answer #8 · answered by hotgurlz704 1 · 0⤊ 1⤋