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lalacada1
25.01.2020 •
Mathematics
Which system of inequalities is represented by the graph?
y ≤ 3x y > –2x – 1
y > 3x y ≤ –2x – 1
y < –3x y ≥ 2x – 1
y > –3x y ≤ 2x – 1
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Ответ:
y ≤ 3x and y > –2x – 1
Step-by-step explanation:
We start graping using given options
Lets graph y=3x
Make a table
x y= 3x
-1 3(-1)= -3
0 0
1 3(1) = 3
for y = 3x . It is a solid blue line and the graph is shaded down
The graph is shaded down so we use <= symbol
So inequality becomes y <= 3x
Now we graph y= -2x-1
x y =-2x-1
-1 -2(-1)-1=1
0 -2(0) -1 = -1
1 -2(1) -1 = -3
the above points matches the dotted line graph
The graph has a dotted line and it is shaded up so we use > symbol
So inequality becomes y > -2x-1
Ответ:
Step-by-step explanation: