Answer:
Step-by-step explanation:
If the diagonals of the rectangle are congruent,
AC = BD
By using formula to calculate the distance between two points,
Distance between two points = 
Distance between A(0, -3) and C(2, 8),
AC = 
= 
= 
Similarly, distance between two points B(-4, 0) and D(6, 5),
BD = 
= 
= 
Therefore, both the diagonals are congruent.
Hence, given quadrilateral ABCD is a rectangle.
Answer:
-30
Step-by-step explanation:
I'm assuming the equation is
. If it is not please tell me.
If we know the values of m and n, we can just substitute inside the expression.

Hope this helped!
Answer:
thank you
Step-by-step explanation:
Answer:
-3x + 5
Step-by-step explanation:
"Rise over Run"
(0, 5) => (1,2): Goes down (negative slope) 3 units and right 1 unit.
The Y intercept is 5 so the constant is 5.