Marcie ran the 400-meter race 3 times. her fastest time was 52.3 seconds. her slowest time was 56.3 seconds. if her average time was 54.0 seconds, what was her time for the third race?

52.3+56.3+53.4=162    162/3=54

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph