5. If your friend's doctor wants her target heart rate range to be between 143 and 170, and her average resting heart
rate is 62, what is her age? How did you backtrack
through these equations to find her age?

36

step-by-step explanation:

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