Answer:
1 ≤ x ≤ 6 Option A
Step-by-step explanation:
When graph is constant it means, value of graph ( y-values) not to be change different values of x in given interval.
In other words, graph must be parallel to the x axis is known as the constant graph.
A function is a measure of the rate of change of function values with respect to change in input values.
In given graph horizontal line is lie on the interval from x ≥ 1 to x ≤ 6.
So, option A is correct.
Answer:

Step-by-step explanation:



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13 × 9w = 13 × 
117w = 5w - 6 + 13
117w = 5w + 7
117w - 5w = 5w - 5w + 7
112w = 7
112w ÷ 112 = 7 ÷ 112

38.4 is the answer super easy and could just look it up
Answer:
C
Step-by-step explanation:
the only it has constant rate of change (slope, gradient or derivative at every point is equal)