Question

If the point (-3,a) is the image of the point (1,a+4) in the point (b,1) find the values of a and b

Answer 1

a=-1 , b= -1

Step-by-step explanation:

the point (b,1) lies at the midpoint of (-3,a) & (1,a+4)

.

. . b=-3 +1/2 , 1= a+a+4/2

= -1 , = -1

Answer 2

Answer:

b=-1,a=-1

Step-by-step explanation:

as we see (-3,a) is the image of the point (1,a+4) in the point (b,1)

by using formulae

p=x1+x2/2;q=y1+y2/2

b=-3+1/2=>b=-1

1=a+a+4/2=>a=-1

hope u got it its an easy sum but if one is facing problem in this chapter i highly reccomend him to use the class 10th ml aggarwal once and then his 11 th book for better understanding and making concepts clear for help in sums one can also consult learninsta for quick soln.