Try this option:
the rule: if f(-x)=f(x), then the function f(x) is even, if f(-x)=-f(x) then the function is odd.
1. f(x)=-5x⁴-2;
if to substitute x→(-x), then f(-x)=-5*(-x)⁴-2; ⇔ f(-x)=-5x⁴-2, in other words f(x)=f(-x), it means that this function is even.
2. f(x)=x³+2x.
if to substitute x→(-x), then f(-x)=(-x)³+2*(-x); ⇔ f(-x)=-(x³+2x), in other words f(-x)=-f(x), it means that this function is odd.
Answer:
The 4rth line and 5th line
Step-by-step explanation:
This 2 cup measuring cup with 8 division lines
8th line ------ 2 cups
7th line ------
6th line ------
5th line -----
4th line ----- at this line 1 cup
3rd line -----
2nd line ----
1st line ----
Step-by-step explanation:
I can't see good the picture
Answer:
250 minutes with the flat rate of $29.
x would be the number of minutes called.
Tracy would be charged by $0.35 per minute.
