03-06-2016
Mathematics

contestada

Use the discriminant to find the number of real roots in Y = x^2 – 6x + 9

Respuesta :

whiskeyo whiskeyo

03-06-2016

So discriminant is being counted from that equation:
b^2-4ac = 36-36 = 0

As discriminant is 0, then there is just 1 root -> -b/2a = 6/2 = 3.

Answer Link

Otras preguntas

Which student's expression has a coefficient of 1 when simplified?

How can you use the properties of operations to evaluate this expression? 18 + 4(28)

Look at the diagram, which shows the process of diffusion. Then, answer the question.membranePublic DomainWhy will the molecules move from right to left through

.Adam is 3 times as old as his sister Naya , in 4 years he will be twice as old as Naya , how old are Adam and Naya now ?

They form a wide band called a Asteroids _____

Which operation would you perform first in this expression? 3 × 2 + (9 − 3) ÷ 22

Identify each function as linear, quadratic, or exponential. 1: f(x)=4x^2 2: g(x)=1-x 3: h(x)=3^2x Linear, quadratic, or exponential?

Can you please help me on this question m+2m-6=-12+2m

how does the list of potential explanations for altruism contribute to our understanding of psychologists views on the subject / answers: A: the list of explana

1.) Do you think the responsibility of military service should be shouldered by just 1 percent of the adult population? Explain.