fastlillian
fastlillian fastlillian
  • 03-04-2018
  • Mathematics
contestada

What are the solutions for x when y is equal to 0 in the quadratic function.
Y=x^2-25

A. x = 5
B. x = −20 or x = 5
C. x = 5 or x = −5
D. x = 10 or x = −15

Respuesta :

Bladerunner1976
Bladerunner1976 Bladerunner1976
  • 03-04-2018
[tex]x^2 -25 = 0 \\ x^2=25 \\ x=+/- \sqrt{25} \\ x = +/- 5[/tex]
Answer Link

Otras preguntas

Needing help with this please help!!
Upgrades required by a Federal, State, Local, Territorial, or Tribal government are eligible if the code or standard:
HELP ME PRETTY PLS PLS HELP ME FAST
factorise[tex] \frac{x^{2} - 5x + 6}{x^{2} - 7x + 12} [/tex]​
Help my please (pre algebra)
CD is a perpendicular bisector of chord AB and a chord through CD passes through the center of a circle. Find the diameter of the wheel.
The diameter of his friend's similar wand is 4.5 millimeters shorter than the diameter of Arun's wand. How much wire did his friend need to make the circular pa
Solve for x. Assume that lines which appear tangent are tangent. Please help!!!!!!
How much must a woman weigh (force) if the pressure she exerts while standing on one foot has an area of 0.4 m2 exerts a pressure of 45 Pa?
Scale 1 inch to 7 ft actual size 147 square feet what is scale drawing area?