The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, a
1 answer:
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Answer:
B, C, and D.
Step-by-step explanation:
Let's go through each answer choice.
A: To find the slope of a line from two points, we use this formula: . Plugging in the values (-2,0) and (2, -4), we get:
Because option A says the slope is 1, but we got -1, option A is false.
B: To find the y-intercept, we use this formula:
Since we know the value of b is the y-intercept, we could write the y-intercept as (0,-2). Therefore, option B is true.
C: The equation of a line (in slope-intercept form) is y = mx + b, where y - y-coordinate, m = slope, x = x-coordinate, and b = y-intercept. Since we already solved for the y-intercept and slope, let's plug in those values:
As you can see, the equation we got here matches the one in option C, meaning it's true.
D: We know that a point is written like this: (x, y). If the x-coordinate is not zero but the y-coordinate is, then it's the x-intercept. Since the question says that (-2,0) is one of the points the line passes through, and option D says that the x-intercept is (-2,0), it's true.
Answer:
It has the same domain as the function
Step-by-step explanation:
we have
we know that
The radicand cannot be a negative number
so
Solve for x
Multiply by -1 both sides
The domain of the given function is the interval ----> (-∞,0]
All real numbers less than or equal to 0
The range of the given function is the interval ----> [0,∞)
All real numbers greater than or equal to zero
<u><em>Verify each statement</em></u>
Part 1) It has the same domain as the function
<em>The statement is true</em>
The domain of the function is
the interval ---> (-∞,0]
Part 2) It has the same range as the function
The statement is false
The range of the function is
the interval ---> (-∞,0]
Part 3) It has the same domain as the function
The statement is false
The domain of the function is
the interval ---> [0,∞)
Part 4) It has the same range as the function
The statement is false
The range of the function is
the interval ---> (-∞,0]