1. Bellwork
Quarter 3
Week #2

2. Bellwork: Quarter 3 Week #2 Monday, January 12, 2015
Which list correctly provides the domain and the range of the following set?
{(0,2),(-1,5),(3,-3),(1,-2),(-4,0)}
Domain: {-3, -2, 0, 2, 5}
Range: {-4, -1, 0, 1, 3}
B) Domain: {-4, -1, 0, 1, 3}
Range: {-3, -2, 0, 2, 5}
C) Domain: {0, 2, -1, 5, 3}
Range: {-3, 1, -2, -4, 0}
D) Domain: {-4, -2, 0, 2, 4}
Range: {-3, -1, 0, 3, 5}

3. Bellwork: Quarter 3 Week #2 Tuesday, January 13, 2015
Determine which situations below are functions.
Explain your thinking…why or why not?
A. The temperature (x) compared to each day of the month (y).
Each students’ (x) recorded height (y) in our
classroom.
Each student at NCMS (x) and their student id number (y).
The number of pets (x) per student compared to the number of siblings (y) they have.

4. Bellwork: Quarter 3 Week #2 Wednesday, January 14, 2015
Evaluate x2 + 2y if x = -3 and y = -1: Show your work. Would you get the same result if x was a positive 3 instead? Why/why not? Explain what it means to “square” a number and what happens if the number being squared is negative.
A) -8
B) -7
C) -11
D) 7

5. Bellwork: Quarter 3 Week #2 Thursday, January 15, 2015
Find the range of f(x) = -3x + 5 if the domain is {-3,1,4}
f(-3) = -3x + 5
f(1) = -3x + 5
f(4) = -3x + 5
f(-3) = -3 (-3) + 5
f(1) = -3(1) + 5
f(4) = -3(4) + 5
A) {14, 2, -7}
C) {-2, 8, 19}
B) {-14, -2, 7}
D) {2, -8, -19}
Explain why a function is like a machine.

6. Bellwork: Quarter 3 Week #2 Friday, January 16, 2015
Complete the function table below to find the domain. Explain you process.
A) {-20,-12, 16}
C) {4, 2, -5}
B) {-4, -2, 5}
D) {12, 8, -6} x
-2x + 4
f(x) 12 8 -6