#### EXERCISE

##### Type - 4
###### Question 1 :
Q.1.   Find the distance between the  following pairs of points:
(i)   (2, 3), (4, 1)
(ii)   (–5, 7), (–1, 3)
(iii)  (a, b), (–a, –b)
###### Formulae used :

Distance Formula to find distance between two points (x1,y1) and (x2,y2) is :                                                D = √[(x2 – x1)2 + (y2 – y1)2 ]

###### Solution :
Sol. (i) Here x1 = 2, y1 = 3, x2 = 4 and y2 = 1
∴ The required distance

###### Class Work
Q.1.   Find the distance between the  following pairs of points:
(i)   (2, 3), (4, 1)
(ii)   (–5, 7), (–1, 3)
(iii)  (a, b), (–a, –b)
Q.1.   Find the distance between the  following pairs of points:
(i)   (2, 3), (4, 1)
(ii)   (–5, 7), (–1, 3)
(iii)  (a, b), (–a, –b)
Q.1.   Find the distance between the  following pairs of points:
(i)   (2, 3), (4, 1)
(ii)   (–5, 7), (–1, 3)
(iii)  (a, b), (–a, –b)
(i) 5 m
(i) 5 m
(i) 5 m
###### Assignment
Q.1.   Find the distance between the  following pairs of points:
(i)   (2, 3), (4, 1)
(ii)   (–5, 7), (–1, 3)
(iii)  (a, b), (–a, –b)
(i) 5 m
(i) 5 m
(i) 5 m
###### NCERT Questions
Q1. Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and their coefficients:
(i) x2 – 2x – 8
(ii) 4s2 – 4s + 1
(iii) 6x2 – 3 – 7x
(iv) 4u2 + 8u
(v) t2 – 15
(vi) 3x2 – x – 4