ahemz.
FINDING THE SLOPE*
can sumone write me out a proper solution with work for
3x - y = 4?
much thanks!
2007-07-22 15:49:32 · 10 answers · asked by ◆CносоCат◆- - - 2 in Science & Mathematics ➔ Mathematics
3x - y = 4
First the equation of one point slope formula
y = mx + c (general equation)
always try to arrange the given equation like the general equation. basically Isolate y from other values
Add both sides with (y - 4)
3x - y + y - 4 = 4 +y - 4
3x - 4 = y
or y = 3x - 4
Now this equation is similar to y = mx + c with c = -4 and m = 3
so the slope (m) = 3
2007-07-22 15:52:13 · answer #1 · answered by Sam 3 · 0⤊ 2⤋
Slope is like a staircase with stairs.
How big are the stairs?
How tall is the stair and how far does it go forward.
Since x goes 3 times slower than y to make a true statement...
Or do it the standard way...
3x = y + 4
3x - 4 = y
mx - b = y
m = slope
m = 3.
So y goes up 3 times faster than x goes horizontal.
2007-07-22 23:04:10 · answer #2 · answered by winter_new_hampshire 4 · 0⤊ 0⤋
the slope of this equation is 3, because slope intercept form for this equation would be: y=3x-4 (y=mx+b) M equaling the slope and b equaling the y intercept. So it is 3.
2007-07-22 23:12:21 · answer #3 · answered by ? 2 · 0⤊ 0⤋
3x - y = 4
-y = -3x + 4
y = 3x - 4 from y = mx + b where m = slope
m = 3
2007-07-22 22:59:24 · answer #4 · answered by Anonymous · 0⤊ 0⤋
see the 3 in front of x, the -1 in front of y? slope is -( 3/-1) = 3. you can learn to read the slope at a glance. see why:
ax + by = c
by = -ax + c
y = (-a/b)x + c/b
-a/b is the slope, c/b is the y-intercept.
2007-07-22 22:55:12 · answer #5 · answered by Philo 7 · 0⤊ 0⤋
3x means 3 times somthing so I put 3x2 which would equal 6 so y=2 because 6-2 is 4!
(I could be wrong,I'm in 8th and I make B average.) xD
2007-07-22 22:57:49 · answer #6 · answered by musical_tide 2 · 0⤊ 0⤋
the slope is always the number before the "x" in the equation
so in this case, the slope is 3
but since the slope is always a fraction, you add a /1
so the slope is 3/1
2007-07-22 22:57:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
i just finished 7th grade so ur in luck.
Equation of a line.Y=ax+b
a=slope
b=y-intercept
for this equation.....
y=4
ax=3x
b=y
slpoe=3/1 and u go up.
y intercept=y
For th graphing part.
you have to start on 0,0 since its y intercept is y.
so you go up 3 on the y axis and one to the right on the x axis positive.
Then u can go up 3 more and over one. just like the step before.
2007-07-22 23:05:17 · answer #8 · answered by Anonymous · 0⤊ 0⤋
3x - y = 4
-y = -3x + 4
y = 3x + 4
m = 3
2007-07-22 22:52:30 · answer #9 · answered by Anonymous · 0⤊ 0⤋
y=3x-4
y=3x+(-4)
Comparing with y=mx+c
Slope=m=3
2007-07-22 22:54:50 · answer #10 · answered by azimef 2 · 0⤊ 0⤋