2(-2) + 7
= -4+7
= 3
so when x = -2 y = 3
Yes
<span>given ordered pair is a solution to the equation </span>
Answer:
C
Step-by-step explanation:
The volume (V) of a cone is calculated using the formula
V = πr² h
where r is the radius and h the perpendicular height
here r = 5 and h = 6, hence
V = × π × 5² × 6
= 2π × 25 = 50π m³ → C
Answer: + 3x is an odd function and it is symmetric about the origin.
Step-by-step explanation:
A function is odd if the graph of the function is symmetrical about the origin, or a function is odd if f(-x) = -f(x). To determine if a function is even or odd, you substitute -x for x in the function, if the resulting function is the same as the original function, then the function is even but if otherwise , the function is odd. Considering the graph of + 3x , it is symmetric about the origin , therefore it is an odd function.
Considering the second method of checking , let us substitute -x for x in the equation.
+ 3x
+ 3(-x)
= - 3x , this shows clearly that it is an odd function.