Answer:
Option B.
Step-by-step explanation:
The given table of values is
x f(x)
-3 -2
-2 0
-1 2
0 2
1 0
2 -8
3 -10
4 -20
We need to find the interval for which the function f(x) is positive.
From the given table it is clear that the value of function f(x) is negative before -2 and after 1.
The function positive between x=-2 and x=1. So, we can conclude that the function f(x) is positive for the interval (-2,1).
Therefore, he correct option is B.
Answer:
see explanation
Step-by-step explanation:
Given the polynomial

The rational zeros are all the possible factors of
dived by all the possible factors of
. Therefore we use the rational rots theorem to find all possible rational zeros.
To find all zeros we use the remainder theorem. Thus, we plug in all the rational zeros to determine which ones evaluate to zero. These are the real zeros. We could also use long division to find the remaining zeros as soon as we got the first zero with the remainder theorem.
65 has factors of 5 and 13
5•13
Answer:
x=
+
Step-by-step explanation:
let's solve for x.
y=23x(45)−7x+678
step 1: flip the equation.
1028x+678=y
step 2: add -678 to both sides.
1028x+678+−678=y+−678
1028x=y−678
step 3: divide both sides by 1028.
1028x/1028=y-678/1028
x=1/028 y+-339/514
answer- x=
+
good luck :)
have a great day !!