4. Presley and Amber are members of their high school swim team. Presley swims 42 laps each practice. Amber swims 30 laps each practice, and last
summer. Amber swam 324 extra laps. Write an equation to represent
after how many practices, x, each girl will swim an equal number of laps,

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

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