marbo14 marbo14
  • 22-06-2017
  • Mathematics
contestada

what are the solutions for x when y is equal to 0 in the quadratic function y=x^2-8x

Respuesta :

ClarenceV
ClarenceV ClarenceV
  • 22-06-2017
I would use the quadratic formula for this:

  x = -b ± √b² - 4ac over 2a
  x = 8 ± √64 - 4(1)(0) over 2(1)
  x = 8 ± √64 over 2
  x = 8 ± 8 over 2 [simplify]
  x = 4 
± 4
     x1 = 4 + 4    x2 = 4 - 4
     x1 = 8          x2 = 0


Thus, the solutions for x would be 0 and 8.
Answer Link

Otras preguntas

What is the value of 3yx +2x when x=4 and y=-2 A.-28 B.-16 C.8 D.56
Which equations are related equations to x + 4 = 15? Select each correct answer. A. x = 15 + 4 B. x=15−4 C. x + 4 = 15 D. 4=15−x
Electrical charges exist in the sea and in the air.
Which of the following best describes the fate of energy in ecosystems? a. It will ultimately be recycled back into the ecosystem. b. It flows from secondary co
The rectangle table has area of 4/5 square meters. the length of the table is 8/3 meters. What is the width in meters?
Evaluate the expression 2(8 - 4)^2 - 10 / 2
An alligator population in a naturer preserve in the Everglades increased by 60 alligators or five years what is the mean yearly change in the alligator populat
explain how the government is contributing towards poverty alleviation through 1. Social grant 2. Nutrition programmes 3. Access to free basic education 4. Fr
What was an effect of jay's treaty in 1794
Explain how and why historians use organizing principles to help make sense out of the past?