Question

@mathmate

Answer 1

@mathmate

Answer 2

Finally, got here!

Answer 3

Start with quadratic equations, ok?

Answer 4

ok :)

Answer 5

Solve
\(x^2 -6x +9=0\)

Answer 6

a=1
b=-6
c=9

Answer 7

ok.

Answer 8

\[\huge~x=\frac{ -(-6)\pm \sqrt{(-6)^2-4(1)(9)} }{ 2(1) } \]

Answer 9

Great, now can you simplify that, because it will be greatly simplified when you put the numbers in there.

Answer 10

\[\huge~x=\frac{ 6\pm \sqrt{0} }{ 2}\]

Answer 11

\[\huge~\frac{ 6 }{ 2 }=3~~~~~x=3\]

Answer 12

Yes, that is the same as {3,3}, or 3 (twice)

Answer 13

It's called a double root, andthe graph looks like this:
the vertex just touches the x-axis.

Answer 14

ok so far?

Answer 15

ye

Answer 16

If you factored, you would have got (x-3)^2=0, which is the same as saying (x-3)=0, or
x=3 (twice), or x={3,3}

Answer 17

Was wondering you still have the online textbook?

Answer 18

Can you dig some questions out of there, which will be more like what you have learned.

Answer 19

T_T but there are answers ,_,

Answer 20

You don't have to look at them, in any case, we are looking at the work, can check the answers at the end.

Answer 21

There may be word problems, which take more time to make. Using ready-made problems can help us do more.

Answer 22

Have you done anything like this?

"A picture has a height that is 4/3 its width. It is to be enlarged to have an area of 192 square inches. What will be the dimensions of the enlargement?"

Answer 23

:/

Answer 24

no O_O

Answer 25

Always the numerical equations, and nothing like word problems?

Answer 26

no ._.

Answer 27

ok, so we can skip that.

Answer 28

:)

Answer 29

Whenever you solve quadratics, there are three ways to do it.
If the teacher does not specify, you can use any method you want. If he/she specifies completing the square, you have no choice.
the three are:

Answer 30

quad formula (just did)
factoring (did over the weekend)
completing the square

Do youknow how to do the last one?

Answer 31

no :/ we havent learned it

Answer 32

ok, so we skip that too.
Anything else you'd like to do on quadratic equations/

Answer 33

Nope.

Answer 34

So we will move onto system of linear equations.
Have you done word problems?

Answer 35

yes but dont like those :/

Answer 36

How many ways do you know to solve system of linear equations?

Answer 37

Elmination
Substituion
:/

Answer 38

comparison?