
(a)
The maximum order in which both the equations are linear.
(a)

Answer to Problem 6PS
The maximum number of solutions of the system if both are linear is one.
Explanation of Solution
We need to find the maximum number of solutions satisfying the given conditions for a system of equations with two variables.
We need to find maximum number of solutions of system if both equations are linear. The graphical interpretation of two linear equations is two lines. Since it is given that they have got finite number of solutions, it is clear that they intersect at some points. Since they are lines, they can intersect at one point maximum. So, the maximum number of solutions of the system if both are linear is one.
(b)
The maximum number of solutions when one equation is linear and the other is quadratic.
(b)

Answer to Problem 6PS
The one line can intersect with circle or parabola at two points maximum, maximum number of solutions of the system is two.
Explanation of Solution
We need to find maximum number of solutions of system if one equation is linear and other is quadratic. The graphical interpretation of one linear equation is a line.
The graphical interpretation of one
Since it is given that they have got finite number of solutions, it is clear that they intersect at some points. Since one line can intersect with circle or parabola at two points maximum, maximum number of solutions of the system is two.
(c)
The maximum number of solutions when both the equations are quadratic.
(c)

Answer to Problem 6PS
The maximum number of solutions of the system is four.
Explanation of Solution
We need to find maximum number of solutions of system if two equations are quadratic. The graphical interpretation of one quadratic equation is a circle or a parabola. Since it is given that they have got finite number of solutions, it is clear that they intersect at some points. Since one circle or parabola can intersect with circle or parabola at four points maximum, maximum number of solutions of the system is four.
Chapter 7 Solutions
Precalculus with Limits
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