The answers I have gotten are
A- x+y= $25
B- $95
Answer:
4.6
Step-by-step explanation:
Given:
The quadratic equation is:

To find:
The discriminant of the given equation and the number of real solutions.
Solution:
If a quadratic equation is
, then the value of discriminant is:

If D<0, then the quadratic equation has no real roots or two imaginary roots.
If D=0, then the quadratic equation has two equal real roots.
If D>0, then the quadratic equation has two distinct real roots.
We have,

Here,
. So, the discriminant of the given equation is:



Since D<0, therefore the number of real solutions is 0.
Hence, the value of the discriminant is -31 and the number of real solutions is 0.
Answer:
Step-by-step explanation:
y - 5 = -2(x + 4)
y - 5 = -2x - 8
y = -2x - 8 + 5
y = -2x - 3 <====
or this one..
y = -2x - 3
2x + y = -3 <===