Answer:
5) a)(-4,-6) b) (4,2) c) (2,6) 6) (3,2)
Step-by-step explanation:
5) the solution is the points where the lines meet.
6) graphed the lines; the picture of the graph is attached below
Answer:
The circunference is represented by the equation is
.
The graph of this function is presented in the attachment.
Step-by-step explanation:
The general equation of the circunferece is defined by the following formula:
(1)
We can determine the value of the coefficients by knowing three distinct points:
,
, 
The system of linear equations is:
(2)
(3)
(4)
The solution of this system is:
,
,
.
The circunference is represented by the equation is
.
The graph of this function is presented in the attachment.
This is in simplest form.
Answer:
60
Step-by-step explanation:
8x+9y
Let x=3 and y=4
8*3 +9*4
24+ 36
60