What is the Vertex, Axis of symmetry and the roots to X^2+2-3X?

« previous next »

Author Question: What is the Vertex, Axis of symmetry and the roots to X^2+2-3X? (Read 1697 times)

coco

Hero Member
Posts: 739

on: Jun 18, 2013

Please Explain

Physics ¦ Walker ¦ 5^th Edition

Buy Test-Bank

TI

Sr. Member
Posts: 434

Reply #1 on: Jun 18, 2013

for quadratics:

x = -b/2a

x = -(-3) / 2(1)

x = 3/2 <- the axis of symmetry

to find the vertex, plug this x value into the equation:

y = (3/2)^2 + 2 - 3(3/2)

= 9/4 + 8/4 - 18/4
= -1/4

vertex = (3/2, -1/4)

for roots find what multiplies to get 2 and adds to get -3

that's -1,-2

so the roots are x = 1 and x = 2

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.