<h3>A
nswer:</h3>
after watching a two minute video on how to tell if a relation is a function, I can confidently tell you that the answers are 2, 3, & 4.
<h3>
step-by-step explanation</h3><h3>
</h3>
answers 3 & 4 are the x and y coordinates of the points.
this relation is not a function because it does not pass the vertical line test.
( the vertical line test is where you look at all the vertical lines on the page and check if any of them have multiple dots on them. in this case, the line at x coordinate 1 has dots on both (1, 1) and (1, -1) )
Answer:
we need to see a graph
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hello!
A regression model was estimated in order to test if the number of units of a restaurant chain affecta the sales of said restaurant chains.
The estimated model is:
Y= a + bX
Where
Y: is the sales of a restaurant chain
X: number of units of a restaurant chain
Looking at the computed data, the estimated coefficients are:
a= 4.633131413
b= 0.439724072
The correct regression equation to predict Sales based on Units, according to this analysis, is..
Y= 4.63 + 0.44X
I hope it helps!
Answer:
2x11xpie
Step-by-step explanation:
Answer: The function could be y= - 3 cos x
Solution:
One x-intercept is (pi/2,0): We can use a trigonometric function like cosine that has x-intercept (pi/2,0).
The domain of the cosine function is the set of all real numbers.
The maximum value is 3, then the amplitude must be 3: y = 3 cos x
The y-intercept is (0,-3) then it is the functio y = 3 cos x, reflected around the x-axis: y = - 3 cos x
