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Graph the equation -4x-2y=12note: the points cannot be removed off the axis

Graph the equation -4x-2y=12note: the points cannot be removed off the axis-example-1
User Chamikara
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To answer this question, we need to remember what the intercepts are in a line equation.

The intercepts of a line are those points where the lines pass through the x-axis - this is called the x-intercept - and, at this point, the corresponding value of y is equal to zero. Likewise, the y-intercept is the point where the line passes through the y-axis, and, at this point, the value for x = 0.

Therefore, we can find those intercepts as follows:

Finding the x-intercept

We have the line equation is:


-4x-2y=12

If we have that y = 0, then:


-4x-2(0)=12\Rightarrow-4x=12

|f we divide both sides by -4, we have:


-(4x)/(-4)=(12)/(-4)\Rightarrow x=-3

Therefore, the x-intercept of this line is (-3, 0).

Finding the y-intercept

We can proceed similarly. This time, we need to have x = 0. Therefore, we have:


-4(0)-2y=12\Rightarrow-2y=12

If we divide both sides by -2:


(-2y)/(-2)=(12)/(-2)\Rightarrow y=-6

Therefore, the y-intercept is (0, -6).

Thus, we can graph the line using the points (which are the intercepts of the line): (-3, 0) and (0, -6).

We can see the two intercepts in the following graph:

Graph the equation -4x-2y=12note: the points cannot be removed off the axis-example-1
User Hstay
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