2007-01-26 13:19:44 · 16 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
It is the location where the line intersects the x-axis.
By definition, at the x-axis, y=0.
Thus when y=0, find that x=-1/4
Thus the x-intercept is the coordinate, (x,y) (-1/4,0)
2007-01-26 13:24:17 · answer #1 · answered by Anonymous · 2⤊ 1⤋
X intercept can be found by calculating wher the line will cross the X axis. Obviously, the y coordinate is zero at this point. Therefore, the x intercept can be found by substituting y with zero in the equation of the line.
The equation is, -8x - 3y =2.
Substitute y with zero.
You get, -8x -0 = 2, or -8x = 2. Hence x = -1/4
Similarly, the y intercept can be found substituting x with zero.
In general, if the equation is ax + by = c, then the x intercept would be c/a and the y intercept would be c/b.
2007-01-30 10:31:49 · answer #2 · answered by Bharat 4 · 0⤊ 0⤋
Ok, the x-intercept is the point on the x-axis as defined by the equation. Since you're looking for a point on the x-axis, y will equal 0.
Substitute 0 in for y.
-8x-3(0)=2
-8x=2
x = -1/4
So the x-intercept is the point (-1/4, 0).
2007-01-26 21:36:30 · answer #3 · answered by ♥ Dani 6 · 1⤊ 0⤋
the x-intercept is where the graph of your function crosses the x-axis of the x-y coordinate plane, that is to say where the vaoue for y is 0.
To find this value, simply set the value for y to xero and solve for x:
-8x - 3y = 2
-8x - 3(0) =2
-8x = 2
-8x / -8 = 2 / -8
x = -1/4 or -0.25
2007-01-27 06:42:59 · answer #4 · answered by Runa 7 · 0⤊ 0⤋
When it crosses the x axis, y is 0.
-8x-3(0)=2
-8x=2
-x=1/4
x intercept=-1/4
2007-01-26 21:29:07 · answer #5 · answered by hinkydinkyparlezvous 2 · 1⤊ 0⤋
The x-intercept is where the equation, or curve intercepts with the y axis, when it intercepts the y axis, y is equal to 0, therefore the equation is -8x=2, which means that the value of the point where the curve intercepts the y axis, or the x intercept is (-1/4,0)
2007-01-26 21:28:46 · answer #6 · answered by Slibuntu 2 · 1⤊ 0⤋
In the case of x intercept the value of y will be zero.
So if we put y=0 in the given equation we will get -8x=2
so, x= -(1/4)= -0.25
~~~~your answer
2007-01-28 12:33:45 · answer #7 · answered by sharbadeb 2 · 0⤊ 0⤋
The points are:- (x,0) since y=0
y=mx+c
Substituting it,
0=-8x/3-2/3
0=-8x-2
-8x=2
x=-2/8
x=-1/4
2007-01-28 00:10:21 · answer #8 · answered by moiiii 1 · 0⤊ 0⤋
First: replace "0" with the y-variable...
- 8x - 3(0) = 2
- 8x - 0 = 2
- 8x = 2
Sec: isolate "x" on one side by itself > divide both terms by "-8"...
- 8x/-8 = 2/-8
x = -2/8
Third: simplify the fraction into lowest terms...
x = -1/4
2007-01-26 22:33:22 · answer #9 · answered by ♪♥Annie♥♪ 6 · 1⤊ 0⤋
It is the location where the line intersects the x-axis.
By definition, at the x-axis, y=0.
Thus when y=0, find that x=-1/4
Thus the x-intercept is the coordinate, (x,y) (-1/4,0)
2007-01-27 03:57:15 · answer #10 · answered by jyoti 1 · 0⤊ 0⤋