Answer:
y=1/2x-4
Step-by-step explanation:
y=1/2x+b
-3=1/2(2)+b
-3=1+b
-4=b
y=1/2x-4
Answer:
it is 221
Step-by-step explanation:
Answer:
I have answered. it is perfect answer
Answer:
Uhh? You can't factor this!
Step-by-step explanation:
So.. we see that the last term, the constant, (the +5) is positive, which means the two terms (the a and b on the (x+a)(x+b) must be either both positive or both negative).
We try positive, and we end up with
(x+1)(x+5)
x^2 + x + 5x + 5
x^2 + 6x + 5
which is not what we want!
We try negative, and we end up with
(x-1)(x-5)
x^2 -x -5x +5
x^2 -6x +5
which is also not what we want!
This isn't factorable!
You can always complete the square or utilize the quadratic equation, but you can't factor it.
