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

I Need Assistance With These
Match the vocabulary word with its meaning. 1. capitalism to change or improve something by correcting faults or removing abuses 2. chattel an economic syst
What is 27/7 simplified as
Which of the following events happen during president hardings term? A) the Supreme Court decided to break up large corporations. B) The supreme court strength
Evaluate 9(b+2) -5b for b=1/4
The balance includes both the fees for service and the shipping charges. Is this sentence incomplete or complete?
A computer store buys a computer system at a cost of ​$370.80. The selling price was first at $ 618​, but then the store advertised a 20 % markdown on the syste
What difference do you notice between this passage and contemporary pose.
50 pts Plz help !!!! What is the physical state of matter of baking soda.
Describe Germany’s successes at the beginning of world war 2?