Given three points, (-1,3.2), (-8,4), and (-6.5,-9.3), determine the equation of the circle that passes through the points. solve the problem by deriving a system of three linear equations (substi- tute the points in the equation) and solve the system.

The equation of the circle can be written in general form as ...

... x² +y² +ax +by +c = 0

Substituting the given points, this equation becomes

... (-1)² +3.2² + (-1)a +3.2b +c = 0

... (-8)² +4² + (-8)a +4b +c = 0

... (-6.5)² +(-9.3)² + (-6.5)a +(-9.3)b +c = 0

In augmented matrix form, the system of equations is

The solution to this set of equations can be found using the matrix solver on your calculator. It is ...

So, the equation for the circle in general form is

... x² + y² + 10.3754x + 4.8348y - 16.336 = 0

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

your answer   is c

step-by-step explanation: