3.1.5 Graphs, Tables, and Rules

3.1.5 Graphs, Tables, and Rules
Homework
Name ____________________________________________________ Period __________
3-46. Create an x → y table using at least eight points
from the graph at the right. Write the rule for the
pattern below the table.
-3
0
-2
1
-1
2
0
3
1
4
2
5
3
6
4
7
Entries in the table above will vary, what is given is an
example
y=x+3
3-47. For each rule below, fill in the table of x- and y-values using positive and negative
values and zero. Then create a graph and connect the points from your table on the grid
below using an appropriate scale.
a. y = −2x + 7
b. y = 11x
3-48. WHICH IS GREATER?
Write the algebraic expressions shown below. Show your simplification moves (on the mat
and written out) to determine which expression in the Expression Comparison Mat
is
greater.
b.
a.
Left
Right
3-49. Simplify each expression.
a.
(0.8)
b.
8/15
·
4/7
c. − ·
d. − · −(1 )
-10/21
16/15
3-50. For the following equations, simplify and solve for the variable. Record your work.
a. 2x − 7 = −2x + 1
b. −2x − 5 = −4x + 2
x=2
x = 3.5