help with steps

[storm mulch]

0.5x^2 - 4x + 2 < -4

we started a new topic and I'm kind of lost, I think I should be solving it by factoring but I can't figure it out

[storm mulch]

NVm so i just use quadratic formula

[woeful schooner]

Here is the solution of the quest...if you still don't get it feel free to ask

In the first step I multiplied the whole eq. by 2 to get rid of 0.5

In second step I addes 8 on both sides to make the RHS 0

And after finding the factors you can get the solution

[storm mulch]

Gotcha

whats RHS stand for

[woeful schooner]

Right Hand Side

[storm mulch]

also the question says "Use graphing technology, solve each quadratic inequality"

would I just create a parablo on a graph marking 2,0 and 6,0

and then say its between that

[woeful schooner]

Yeah that's how you should do

Graphs are always the best option

[storm mulch]

do i need to find the vertex for these types of questions

to make the parablo more accurate

since its only 2 points to work with

i know it would look something like this but it wont be accurate

[woeful schooner]

Yes that's correct

You can find the vertex by finding the derivative easily

4,-4 are the vertices of this parabola

[woeful schooner]

Could you tell me in which grade you are?

[storm mulch]

grade 11

doing pre calculus

[woeful schooner]

Then you need to find the vertices

[storm mulch]

ah

and the equation to find the vertex is -b/2a

[woeful schooner]

Yep that is also correct

[storm mulch]

plugging that in i got 4, but not sure where to get -4 from

oh do i use 4 as x to find it

[woeful schooner]

Just put x = 4 then simplify the expression you will get -4

[woeful schooner]

Yes yes

[storm mulch]

i get -2

(4,-2)

[woeful schooner]

check the calculation it will be -4