Question

i dont understand what it means to "describe the end behavior" of
f(x)=-3x^38+7x-12x+13

Answer 1

what do the ends behave like?

Answer 2

all you need is the first term: -3x^38

Answer 3

is this an even exponent?

Answer 4

yes

Answer 5

then this acts like the simplest even exponent x^2 to begin with

Answer 6

is the number in front poistive or negative?

Answer 7

its a negative 3 with an exponent of 38

Answer 8

good, then this acts like: -x^2 does

how would you describe the ends of an -x^2 graph?

Answer 9

its pointing downwards

Answer 10

then unless your material needs a better description; id say: it acts like a -x^2 grpah with the ends going down on each side to -inf

Answer 11

or something to that effect

Answer 12

ok thank you!

Answer 13

yw