thesmileyface28 thesmileyface28
  • 04-03-2018
  • Mathematics
contestada

For which k will the graph of f(x)=x^2−kx+k^2 cross the x-axis twice?

Respuesta :

tynollette tynollette
  • 04-03-2018
for the graph to cross the x axis twice, b²-4ac needs to be larger than 0
b=-k, a=1, c=k²
b²-4ac=k²-4k²=-3k²
-3k² will never be larger than 0. 
Answer Link
dvclee2
dvclee2 dvclee2
  • 20-04-2020

Answer:

K has no solutions.

Step-by-step explanation:

Because the parabola opens upwards and the y-intercept is non-negative, the parabola cannot cross the x-axis twice. Duh.

Answer Link

Otras preguntas

Why is sodium sulphate hemihydrate called as "Plaster of Paris"?
The function of the eardrum in the middle ear is to
Simplify the expressions: cot 0 sec 0 A. Sin0 B. Csc0 C. Cos0 D. Cos* 0
Why is sodium sulphate hemihydrate called as "Plaster of Paris"?
how were north american colonies all similar in the 1700s?
What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?
what is a high structure part of a church which has 5 letters
The function of the eardrum in the middle ear is to
What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7
what is a high structure part of a church which has 5 letters