how do u graph a equation that has decimal?
7.1x -3.9y=1.4
how do i graph this?
i dont know how to get started.
how do u graph a equation that has decimal?
7.1x -3.9y=1.4
how do i graph this?
i dont know how to get started.
Multiply both sides by 10 and go from there.
Determine the two intercepts; plot them, and use a straightedge to draw a line through them.
The x-intercept is on the x-axis, so the y-coordinate must be zero because we don't go up or down.
(x, 0)
Substitute 0 into the equation for y, and solve for x.
The y-intercept is on the y-axis, so the x-coordinate must be zero because we don't go left or right.
(0, y)
Substitute 0 into the equation for x, and solve for y.
"English is the most ambiguous language in the world." ~ Yours Truly, 1969
where did u get the 10 from?
Are you using a calculator to divide 1.4 by 7.1 ?Originally Posted by Irma Garcia
"English is the most ambiguous language in the world." ~ Yours Truly, 1969
Here is a set of axes for you to use, when you get the coordinates of two points to plot.
The axes go from x = -1 to 1 horizontally and y = -2 to 1.5 vertically.
[attachment=0:35wun6d9]xy-plane.JPG[/attachment:35wun6d9]
"English is the most ambiguous language in the world." ~ Yours Truly, 1969
Since both intercepts are close to the Origin, let's plot four points, instead of two. It's easy.
In addition to the two intercepts, also find the following.
(-1, y)
(1, y)
In other words, find y when x = -1 and also when x = 1.
Plotting four points will make it easier to draw a fairly accurate line segment.
"English is the most ambiguous language in the world." ~ Yours Truly, 1969
Your work is okay, but you made an arithmetic mistake at the end.
x = 1.4/1.7
x = 0.197
I think we can round that off to 0.2, for graphing purposes.
The x-intercept is (0.2, 0).
What do you get for the y-intercept (0, y) ?
"English is the most ambiguous language in the world." ~ Yours Truly, 1969
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