Based on the scatter plot, what type of association is shown between hours of sleep and test scores?
1 answer:
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Answer:
The bill is $1837.5
Step-by-step explanation:
Given
--- The variation
T = 35; when B = 210
Required
Find B when T = 40
Express as an equation
Make k the subject
<em>T = 35; when B = 210</em>
When T = 40, we have:
Make B the subject
Step-by-step explanation:
Putting both functions into a graphing calculator, we can easily find the domain and range. (attatched)
By looking at the graph, we can tell that f(x) is a quadratic function because of the symmetry. We can also tell that it never goes below 4. Knowing this, we can determine the domain and range.
Domain: {x | all real numbers}
Range: {y | y > 4}
By looking at the graph, we can tell that g(x) is an exponential function because it has a curve, and never goes below the x. Knowing this, we can determine the domain and range.
Domain: {x | all real numbers}
Range: {y | y > 0}
