Ein Lehrer wog 145 Pfund in 1986 und 190 Pfund in 2007. Was ist die Änderungsrate in Pfund pro Jahr?

Row — Thu, 19 Mar 2020 17:40:48 +0000

#color(brown)("Rate of change in pounds per year " m = 15/7 "or " 2.14#

#(x_1, y_1) = 1986, 145), (x_2,y_2) = (2007, 190)#

#"Rate of change in pounds per year " m = (y_2-y_1) / (x_2-x_1)#

#=> (190 - 145) / (2007 - 1986) = 45 / 21 = 15/7 " or " 2.14#

Grafik {(15 / 7) x [-10, 10, -5, 5]}

Row – Die Kluge Eule