Answer:
It is not a one to one function
Step-by-step explanation:
Required
Determine if f(x) = round(x) is a one to one function
This question is best answered using illustrating values;
Let x = 1.1
f(x) = round(x) becomes
f(1.1) = round(1.1)
f(1.1) = 1
Let x = 1.3
f(x) = round(x) becomes
f(1.3) = round(1.3)
f(1.3) = 1
Notice that for the two values of x, f(x) has the same value of 1.
This two illustrating values can be used to conclude that the fuction is not one-to-one.
I'll do #6.
The axis of symmetry is the x-coordinate of the vertex, which in this case, is (0,-4). So the axis of symmetry is x=0.
The vertex is in the above answer. Since this is a quadratic function, there are no boundaries, the domain is All Real Numbers.
The range goes up forever <em>from </em><em>the vertex. </em>The vertex is (0,-4), so, the minimum y value is -4. The range is y is greater than or equal to -4, or in interval notation: [-4,infinity]
Hope this helps!
The speed of car is 64 kilometer per hour
<em><u>Solution:</u></em>
Given that car travelled a distance of D = 320 km for T = 5.0 hours
To find: speed (R) of the car in km per hour
<em><u>Formula given:</u></em>
D = R. T
where "D" is the distance
"R" is the speed of car
"T" is the time taken
<em><u>Substituting the given values in above formula we get,</u></em>
Thus the speed of car is 64 kilometer per hour
We cannot round the answer to nearest tenth, since answer is not in decimal
Answer:
the correct answer is 3
Step-by-step explanation:
