name the quadrants in which (-2,8)(-1,7)(1,3)(3,-1) lie
Answers
Answer:
1. In which quadrant or on which axis do each of the points (–2, 4) (3, –1), (–1, 0), (1, 2) and (–3, –5) lie? Verify your answer by locating them on the Cartesian plane.
Ans. In the point (–2, 4), the abscissa is negative and the ordinate is positive.
∴ (–, +) belongs to 2nd quadrant.
∴ (–2, 4) lies in the second quadrant.
The point (3, –1) is having +ve abscissa and –ve ordinate.
∴ (3, –1) lies in the 4th quadrant.
The point (–1, 0) is having (–ve) abscissa and ordinate on the x-axis.
∴The point (–1, 0) lies on the negative x-axis.
The point (1, 2) is having the x-coordiante as well as y-coordinate +ve.
∴Point (1, 2) lies in the 1st quadrant.
The point (–3, –5) is having the abscissa as well as ordinate negative.
∴Point (–3, –5) lies in the 3rd quadrant.
These points are plotted in the Cartesian plane as shown in the following figure as
A(–2, 4); B(3, –1); C(-l, 0); D(l, 2) and E(–3, –5).