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netineya [11]
3 years ago
15

Plz help ty..................................

Mathematics
2 answers:
denis23 [38]3 years ago
7 0
1st thing you need to do is to graph the line y = x - 3 as a dashed line, since the it is just a less than symbol.  Once the line is graphed, we need to decide which side to shade.  I tend to use (0, 0) if at all possible.  We check 0 < 0 - 3

Since 0 is not less than -3 then we shade away from the point (0, 0).  That is how you find the answer.
Sholpan [36]3 years ago
4 0
First step is to graph the equality
y=x-3

In a graph of y=mx+b
m is the slope, and in this case, m=1, which means that y increases by one for each step in x=1.  This creates a line at 45 degrees from bottom left to top right, passing through the origin.

The b=-3 means the line has to be lowered from the origin by 3 units.
b is called the y-intercept, where the line cuts the y-axis (=-3).

So with the line drawn, we need to know the style of the line. 

If the inequality is a strict inequality (< or >), then the line is drawn dotted.
If the line is an inequality together with an equality ( &le; or &ge; or = ), then it is drawn solid.

Finally, an inequality has to be shaded on the side where the inequality is true.

Looking at the inequality, y<x-3  we can read immediately that the valid side is where y is small ("y is less"), so we shade the part below the line.

The finished graph is attached.

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