WILL GIVE 50 POINTS AND BRAINLIEST FOR BEST ANSWER
What types of solutions will a quadratic equation have when the discriminant b2 − 4ac in the quadratic formula is a perfect square?
A. No solutions
B. Two nonreal solutions
C. One real solution
D. Two real solutions

D. Two real solutions

Step-by-step explanation:

Quadratic equation:

Has solution of:

As we have b² - 4ac = k², then solution becomes:

Since all b, k and a are real numbers, we will have 2 real solutions.

Correct answer choice is: D. Two real solutions

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

me! what did you put for this question?

step-by-step explanation: