A regression analysis between sales (in $1000s) and price (in dollars) resulted in the following equation: ŷ = 50,000 − 8x The a
1 answer:
Answer:
b. $1 in price is associated with a decrease of $8,000 in sales
Step-by-step explanation:
Linear function:
A linear function has the following format:
In which m is the slope, which represents by how much y changes when x changes by 1.
ŷ = 50,000 − 8x
This means that , in thousands of dollars, so when the price x increases by 1, the sales will be decrease by $8,000, and thus, the correct answer is given by option b.
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Using cartesian coordinates concepts such as midpoint and distance between two points, it is found that:
- The location point of the Ferris wheel is (15,24).
- They need to walk 20 units.
- The coordinates of the hotdog stand are (23,8).
- Water ride is at point (3,8).
- Roller coaster is at point (27,40).
- The Ferris wheel is at the midpoint of the water ride and the roller coaster, thus it's coordinates are the <u>mean of their coordinates.</u>
The location point of the Ferris wheel is (15,24).
The distance between two points, and
is given by:
Here, Tiffany and her sister are at (15,24) while their parents are at (3,8). Thus, their distance is:
They need to walk 20 units.
- Hotdog stand is directly east of the water ride, thus, it has the <u>same y-coordinate, while the x-coordinate is increased</u>.
- The distance is of 20 units, thus:
The coordinates of the hotdog stand are (23,8).
A similar problem is given at brainly.com/question/24352869