Line ab contains points a (−2, 3) and b (4, 5). line ab has a slope that is

1/3

Step-by-step explanation:

To find the slope when we have 2 point, we use the formula

m = (y2-y2)/(x2-x1)

  = (5-3)/(4--2)

  = (5-3)/(4+2)

  = 2/6

 = 1/3

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0