Author Question: What is the Vertex, Axis of symmetry and the roots to X^2+2-3X? (Read 1691 times)


TI

  • Sr. Member
  • ****
  • Posts: 434
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

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?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

For a complete list of videos, visit our video library