Question

pre-calc

Answer 1

\[ y= \frac{x^2 + 3x-4}{x+4}\]
you can factor the top into (x-1)(x+4)
\[ y = \frac{ (x-1)(x+4)}{(x+4)}\]

Answer 2

you are not allowed to divide by 0,
x+4 is zero if x is -4
so at x=-4 you should have a "hole" to show we can't plot anything there

Answer 3

could you graph it for me as an example please??

Answer 4

for all other x's (x+4) is not zero, so we can simplify (x+4)/(x+4) to 1
and the graph is y= x-1

Answer 5

so would the graph look like this:

Answer 6

coordinates (-4,5)

Answer 7

(-4,-5)

Answer 8

yes, a straight line with slope 1, with y intercept -1
and a hole at (-4,-5)

Answer 9

ok! could you please help me with one more

Answer 10

The hard part is factoring the quadratic

Answer 11

yeah true!

Answer 12

can you help me with one more please?

Answer 13

please make a new post