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

a = 1.

Step-by-step explanation:

For the general vertex form:

y = a(x - b)^2 + c  the line of symmetry is x = b.

y = ax^2 -2x - 3

y = a( x^2 - 2x/a) - 3

y = a[(x - 1/a)^2 - (1/a)^2] - 3

y = a(x - 1/a)^2 - 1/a - 3

Here the line of symmetry is x = 1 so we have:

1/a  = 1

a = 1.

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.