Matching In Exercises 17–20, match the inequality with its graph. (a)
(d)
(b)
4-
3
3-
3-+
3-
2+
2
2-+
2-
1
.
-2-1
2 3 4
2
3
4
17. 2x - y si
18. 2x - y < 1
19. 2x -y 21
20. 2x - y > 1

(0,0) lies on the shaded region.The shaded region lies below the line.

Putting ,x=0 and y=0 , from option(Inequality) 1 to 4

Option 1

0 ≤ -2Incorrect

Option 2

0 ≤ 0.5Correct

Option 3

0 ≤ 0.5 Correct

Option 4

0 ≥ 0.5 Incorrect

Origin(0,0) Satisfy Inequality 2 and Inequality 3.

Equation of line cuts Positive x and positive y axis.Also, angle made by line with positive Direction of X axis is Positive.

So, Tangent of Angle will be Positive.

Option 3 ,that is Inequality 3,  satisfies the shaded region.

on:

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