Answer:
I think he made a mistake in the first one
Step-by-step explanation:
In general, the domain is the set of all x-values for the graph.
The issue here is that this isn't the graph of a function. A function has at most one y-value for each x-value and this graph has an infinite number of y-values for the single x-value of 1.
So, either your teacher is wanting you to say the domain is {1}, because that's the only x-value used by the graph, or they're wanting you to say this is a trick question, because this isn't the graph of a function.
The range is the set of all y-values, which is -9<y<9, but again, do they intend this to be a trick question?
Answer:
<h2>y = 3/4x + 5</h2>
Step-by-step explanation:
The slope-intercept form:
m - slope
b - y-intercept → (0, b)
The formula of a slope:
We have the points (4, 8) and (0, 5) → b = 5.
Calculate the slope:
Therefore we have the equation of the line:
Answer:
0.166666667, to round up it is 0.17
Step-by-step explanation: