megan2001 megan2001

14-05-2019
Mathematics

contestada

The line of symmetry for the quadratic equation y = ax2 - 2x - 3 is x = 1. What is the value of "a"?

Respuesta :

amymatthews amymatthews

14-05-2019

Answer:

a = -1

Step-by-step explanation:

The line of symmetry equation is -b/2a

b = -2

c = -3

[tex]-1=\frac{2}{2a}[/tex]

so multiply the 2a.

-2a = 2

divide by -2

a = -1

Answer Link

Otras preguntas

write as a fraction or a mixed number in simplest form :6.025

An object is at rest on an inclined plane. In which direction does the static friction force act? 1) Opposite to the direction of the gravitational force 2) I

I need help for number 6

CDs cost $10. The cost, c, of n CDs can be calculated using the equation c = $10n. Write an ordered pair to show the cost of 5 CDs

For every 7 glasses wearers in a Classroom,there are about 13 non glasses wearers.If there are 32 students in a entire class how many students are non glasses w

I will be delighted to be done with this project

there were 12 people on jury there were 4 more men than women how many men were there

The size 4 soccer ball sean's team uses should weigh no more than 0.37 kilogram and no less than 0.31 kilogram a soccer bag has two balls in it what is the most

Each team in a soccer league has 43 players on it. There are 24 teams in the league. How many total players are in the league? A) 168 B) 258 C) 812

What word means able to spring back