We are looking for functions where f(-x) = f(x)
Let's test every function.
f(-x) = (-x)^4 - (-x)^2 = x^4 - x^2 = f(x)
The first function is even
f(-x) = (-x)^2 - 3(-x) + 2 = x^2 + 3x + 2 ≠ f(x)
The second function is not even.
f(-x) = √(-x-2) ≠ f(x)
The third function is not even
f(-x) = |-x| = |x| = f(x)
The last function is even.
Thus, the first and last choices contain even functions.
Have an awesome day! :)
Answer:
3) x-axis: 1 unit
y-axis: 10 units
4) quadrant II
coordinates: (-2, 4)
7) Quadrants I and IV; time is always positive , but temperature can be positive and negative
8) W = (-0.75, -1)
Step-by-step explanation:
3) x-axis: 1 unit
y-axis: 10 units
4) quadrant II
coordinates: (-2, 4)
7) Quadrants I and IV; time is always positive , but temperature can be positive and negative
8) W = (-0.75, -1)
Answer:
48
Step-by-step explanation:
because it gives us the perimeter, we add all the sides
4z-1+4z-1+5z+3+5z+3=166
8z-2+10z+6=166
18z+4=166
18z=162
z=9
side PS is 5z+3
plug in z to get 45+3=48