A candy store keeps track of its sales during the month of October. Below is the number of sales for the first, second, third an
d fourth week of the month.
Week 1 ; 2 ; 3 ; 4
Candy Sales 97 ; 168 ; 259 ; 375
Which graph could represent the data shown below?
Week 1 ; 2 ; 3 ; 4
Candy Sales 97 ; 168 ; 259 ; 375
Which graph could represent the data shown below?
2 answers:
From the attached diagram you can see that regression that best fits given data is quadratic (not linear).
- option 1 is false, because it gives linear regression;
- option 2 is true, it gives graph, similar to quadratic parabola;
- options 3 and 4 are false, because graphs are decreasing.
Answer: correct choice is B.
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Answer:
B. y=3(x-1)2 + 3
Step-by-step explanation:
Given that
vertex of the parabola is at the point (1,3)
let's verify, if the option B is the correct equation of the parabola.
comparing to standard equationof parabola (standard quadratic equation), we get
to find the vertex we use formula for x- coordinate as
to find y put x=1 in the Eq1, we get
vertex =(x,y) = (1, 3)
thus vertex of the parabola from the equation y=3(x-1)2 + 3 is (1,3), thus verified