quadratics basic gr10 level

[silver prairie]

i’m so confused on what to do, i keep trying to factor im so lost on how to like execute it if that makes sense & how to isolate which number

[oblique pond]

which part are you struggling with?

also, there written that graphing calculators are expected

[oblique pond]

.

[silver prairie]

like the factoring it part

[silver prairie]

i hav ethat

i just don’t know how to use it i’m sorry ty

[oblique pond]

just write the relation there
it will give you graph

for factoring part, do you see anything common between 20t and -5t^2?

[silver prairie]

but she told me

[silver prairie]

i divided all of it by five

and i got like h = 5t (4-t)

but idk where to go on from that

[oblique pond]

now you should be able to find roots by 5t(4 - t)

[silver prairie]

but how do i’d

i do that

[oblique pond]

see that its a product of 5t and (4 - t)
for a product to be a zero, either one of its factor must be 0

Now you can find both?

[silver prairie]

why does it have to be 0

[oblique pond]

0 * x = 0

its called zero product property

[silver prairie]

but

what if i wanted to do

4x - t = 0

instead of 5t =0

[oblique pond]

then you cannot
you need PRODUCT, not SUM

[silver prairie]

i see okay

thank you

[steady widget]

If you see vertex member use x=-b/a

[silver prairie]

yesss i studied it

thank u