Given:
Coordinates of point C are (-3,6).
Point B(0,5.5) is the midpoint of AC.
To find:
The coordinates of A.
Solution:
Let the coordinates of point A are (a,b).
Formula for midpoint:

Using the above formula, the midpoint of A(a,b) and C(-3,6) is


On comparing both sides, we get



and,




Therefore, the coordinates of point A are (3,5).
Answer:
Step-by-step explanation:
because if we solve the equation we need to do x_y = -1-2
=1
••xy=1
Answer:
5
Step-by-step explanation:
y intercept: when x = 0
5(0) + 3y = 15
3y = 15, y = 5
The y intercept is 5
x= child
2x = adult
6.20x +9.80(2x) =593.40
6.20x +19.6x=593.40
25.80x =593.40
x=593.40/25.80 = 23
23 childrens tickets were sold