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

What do you hope to accomplish with a first draft? How can you make drafting more effective?
(15-10)-(14+12+ (8+5)​
Estimate the original volume of the pyramid in Fig. 15.28, given that its frustum has a 4 m by 4 m square top which is 12 m vertically above the square base whi
How many grams of carbon are contained in one mole of[tex]C_{3}H_{8}[/tex] ?
In the following half equation, which is the oxidizing agent? How & why? NO3- (aq) + 4H+ (aq) + 3e- —> NO (g) + 2H2O A) NO3- B) H+ C) e- D) NO E) H2O
find someone to review my essay
This is from Khan academy I have to attach a PNG if you can help me solve it! Thank you!
Using a sequencing method called "RNAseq," a researcher determines the level of FOXP2 expression
A survey was given to ask a group of adults if they liked chocolate or vanilla ice cream more. The table shows the survey results of three age groups. (see atta
What forces allowed the irish to be assimilated into u. S. Culture despite initial resistance?.