You put the -2 over a 1, and a 1 under the -3. On the y axis, go to -2 and put a dot. Go down three, and right one. To go up, you go up three and left one.
Answer:
Step-by-step explanation:
f(x) = (x + 2)(x +6)
1) The function is positive for all real values of x where x > –4 :
COUNTER-EXAMPLE : x = - 3 you have -3>-4 but (-3+2)(-3+6) = -1 ×3 =-3 no positive .
2) The function is positive for all real values of x where
x < –6 or x > –3.
COUNTER-EXAMPLE : x = - 2.5 you have -2.5>-3 but (-2.5+2)(-2.5+6) = -0.5 ×3.5 =-1.75 no positive .
same method for the statement : "The function is negative for all real values of x where
x < –2."
conclusion : statement about the function is true: "The function is negative for all real values of x where
–6 < x < –2."
.
Answer:
z = 2.12
Step-by-step explanation:
4.62 +3 - 3.6z = 0
7.62 - 3.6z = 0
-3.6z = -7.62
z = 2.12
Answer:
Step-by-step explanation:
The given expresion is:
(−2x + 4y)(3x − 7y)
We expand using the distributive property: (a+b)(c+d)=a(c+d)+b(c+d)
We apply this property to get:
We expand further to obtain:
Answer:
2n=10
Step-by-step explanation:
Distribute the 2 to each term. 2xn=2n and 2x5=10. then you put them together.