Rational numbers m and n are plotted on the number line.

n - m is positive

Step-by-step explanation:

Given

m and n on number line

Required

Which is true

From the attachment, we have:

and

Since: the above inequalities are true, then:

(a) is true

There is no need to test other options; since (a) is true

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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