Question

PLZZ HELP
Use the quadratic formula to find the zeros of the function
y=17x^2-21

Answer 1

\[y=17x ^{2}-21\]

well we dont have a b value so we ignore it and just plug in a,c

and have \[(\pm \sqrt{-4\times 17 \times -21})/ 2 \times 17\]
this becomes
\[(\pm \sqrt{1428})/ 34\]

Answer 2

then we have \[\sqrt{1428} \approx 37.78\]

Answer 3

\[\pm37.78 / 34 \approx \pm 1.1\]

Answer 4

but how is it -1.1 it should be just 1.1 cuz when u put -1.1 in it doesn't work

Answer 5

why would -1.1 not work? the out come becomes.... \[\pm37.78/34\]

Answer 6

my calc messed up my bad