The table below shows the total number of hours, Jessica, Emily, and Trina, each studied after given number of weeks. Part A one
of the relationships between weeks and total hours studied is proportional. Whose number of total hours studied is proportional to the number of weeks studied ? For the proportional relationship, write an equation to represent y, the total number of hours studied, in terms of x, the number of weeks. Explain how u determined your equation. Pls help
2 answers:
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The gradient of the given graph is 1.5
<h3>Calculating Gradient </h3>From the question, we are to determine the gradient of the graph
Gradient is given by the formula
Where m is the gradient
Picking the points (-2, -2) and (2, 4) on the line
Then,
x₁ = -2
y₁ = -2
x₂ = 2
y₂ = 4
Putting the parameters into the equation, we get
m = 1.5
Hence, the gradient of the given graph is 1.5
Learn more on Calculating gradient here: brainly.com/question/21806111
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Given the function below:
To find f(-2), we substitute x = -2 in the equation. Since f(-2) means the value of f(x) at x = -2.
Replace x-term to -2 and evaluate.
Answer
- f(-2) = -21
Let me know if you have any doubts!