©MathsWatch
Clip 96
Straight Line Graphs
Grade 3 questions
1) a) Complete the table of values for y = 4x – 2
x
-2
y
-10
-1
0
1
2
-2
y
3
12
10
10
8
b) On the grid, draw the graph of y = 4x – 2, for values
of x from -2 to 3.
6
c) Use the graph to find the value of y when x = 2.5
4
d) Use the graph to find the value of x when y = -8
2
-2
-1
O
1
2
3
x
-2
-4
-6
-8
-10
2) a) Complete the table of values for y = 2x + 2
x
-2
y
-1
0
0
2
1
2
3
b) On the grid, draw the graph of y = 2x + 2.
y
9
8
7
6
5
4
3
2
1
-2
-1
O
-1
1
2
3
x
-2
-3
Page 96 A
©MathsWatch
Clip 96
Straight Line Graphs
Grade 3 answers
1) a) Complete the table of values for y = 4x – 2
x
-2
-1
0
1
2
3
y
-10
-6
-2
2
6
10
y
12
×
10
8
b) On the grid, draw the graph of y = 4x – 2, for values
of x from -2 to 3.
×
6
c) Use the graph to find the value of y when x = 2.5
y=8
d) Use the graph to find the value of x when y = -8
x = -1.5
4
2
-2
-1
O
×
1
2
3
x
×
-2
-4
×
-6
-8
×
-10
2) a) Complete the table of values for y = 2x + 2
x
-2
-1
0
1
2
3
y
-2
0
2
4
6
8
b) On the grid, draw the graph of y = 2x + 2.
y
9
×
8
7
×
6
5
4
×
3
×
2
1
-2
×
×-1
O
-1
1
2
3
x
-2
-3
Page 96 A