November 10th, Wednesday

Before our precal class, we had an assembly for Remembrance Day which is today November 11. But before we start our lesson for the day,Mr. P wanted to show us his childhood pictures that includes when he was in military, when he graduated highschool and more. Yesterday we talked about using the
formula x= -b/2a to solving the quadratic equations by graphing. An example of solving the quadratic equation by graphing is:

Given function

y= 2x² + 4x + 3

a = 2

b = 4

c = 3

Using the standard form of a quadratic function with x= -b/2a formula will solve the quadratic equation

x= -4/2(2)

= -4/4

= -1

That means x = -1

Also -1 indicated that its the axis of symmetry of the parabola

To so

lve for y, substitute x to -1

y = 2(-1²) + 4 (-1) + 3

y = 2-4+3

y = 1

vertex = (-1,1)
Just like we did in the quadratic functions substitute t

he x to get the y value

y= 2x²+4x+3

















I also did some research about the topic and found another example or another way on how to solve quadratic equations
























For Homework
Don't forget to do your Solving Quadratic Equations by Graphing worksheets.

Have a goodnight everyone !