The following Dot Plot represents two data sets, A & B. which of the following statements is not true? The range of the two sets in the same.

The difference between the median of each set is 40.

Set B has a higher mean than set A.

The mode of set A is 50 less than the mode of set B.

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

then

step-by-step explanation:

a bicycle manufacturer uses the given expression to model the monthly profit from sales of a new model of bicycle, where x is the selling price of one bicycle, in dollars.

(a) x intercepts: -6 and 2

you can obtain these by solving the equation 0=x^2 +4x-12 using your favorite quadratic formula. but it is easy to verify -6 and 2 indeed satisfy this equation.

(b) y intercept: -12

this is obtained by setting x=0: 0^2+4*0-12 = -12

(c) the minimum value is: -16 (this is the vertex)

you can get the vertex by rewriting the equation into the form:

there is no global or local maximum as the function goes to infinity, so only in the limit sense: +infinity.