To get to work Sam jogs 3 kilometers to the train, then rides the remaining 5 kilometers. If the train goes 40 km per hour faster
than Sam's constant rate of jogging and the entire trip takes 30 minutes, how fast does Sam jog?
a 8.2 km per hour
C. 6.7 km per hour
b. 5.3 km per hour
d 7.6 km per hour

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

4.5%

step-by-step explanation: