The line of best fit is a line that follows the direction of the dots. It doesn't have to be perfect, it's just a general line to represent the data. Sometimes there isn't a line of best fit (if there is no correlation). It normally touches most of the dots.
The slope is about 1/2 and the point where the line touches the y axis is at 40 so that means an equation could be y = 1/2x + 40
When the advertising expenditure (x value) is 18,000, substitute it into the equation above. y = 1/2(18,000) + 40 which equals y = 9,040 . This is the expected revenue.
Hope this helps!
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
i normally do rise/run cos it’s easiest
so it goes up 1 while it goes across 5
so slope is 1/5
Answer:
30 and 17
Step-by-step explanation:
Using Pythagoras' theorem, that is
The square on the hypotenuse of a right triangle is equal to the sum of the squares on the other 2 sides, thus
(1)
c² = 18² + 24² = 324 + 576 = 900
Take the square root of both sides
c = = 30
(2)
c² = 8² + 15² = 64 + 225 = 289
Take the square root of both sides
c = = 17
Answer:
number 1
Step-by-step explanation: