A function being even or odd refers to the symmetry of the graph.
Refer to the graphs attached to this answer.
To test if a function is even or odd, replace x in the function with -x. If the new graph is exactly the same as the old graph, the function is even. If not, multiply the entire function by -1. If the new graph is symmetrical to the y-axis, then the function is odd. If it isn't symmetrical, the function is neither even nor odd.
The first graph is the original function. The second graph is the function with x replaced by -x. The third graph is the function multiplied by -1.
The second graph is not equal to the original function. The third graph is symmetrical to the y-axis.
This function is
odd.
hw: 3/2hrs = 3×30 = 90mins
chores: 1/2hr = 1×30 = 30mins
sleep: 17/2hrs = 17×30 = 510mins
90+30+510=630mins=10.5hrs/day
Answer:
x = -39
Step-by-step explanation:
The only thing we need to do here is isolate x by subtracting 27 from both sides :)
x = -39
3(10+2)=3(12)=36 or
5(6+2)=5•6+5•2
=30+10
=40