Practice Problems Unit 3 Lesson 12 There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth graders.

How many band members are sixth graders?

28 band members

Step-by-step explanation:

Since 40% of the band members are sixth graders, we need to take 40% of 70 total students.

40% of 70 = 0.40*70 = 28

So 28 band members are in sixth grade

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