Marty and ethan both wrote a function, but in different ways. marty y+3=1/3(x+9) ethan x y -4 9.2 -2 9.6 0 10 2 10.4 whose function has the larger slope? 1. marty’s with a slope of 2/3 2. ethan’s with a slope of 2/5 3. marty’s with a slope of 1/3 4. ethan’s with a slope of 1/5

Marty’s with a slope of 1/3

Step-by-step explanation:

Marty

y+3=(1/3)*(x+9)

y + 3 = (1/3)*x + 3

y = (1/3)*x

Marty's slope: 1/3

To calculate Ethan’s slope we use the following formula :

m = (y2 - y1)/(x2 - x1)

where (x1, y1) and (x2, y2) are points of the function. Replacing with points (0,10) and (2, 10.4) we get:

m = (10.4 - 10)/(2 - 0) = 1/5

Ethan’s slope: 1/5

its a straight line parallel to the time axis