10 questions🇬🇧English
📉 Straight-Line Graphs y = mx + c – Year 9
Maths · Year 9 (KS3) — gradient, y-intercept, parallel lines and matching equations to graphs
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Questions
What is the gradient of the line y = 3x + 5?
8
5
3x
3
20s
Where does the line y = 2x − 7 cross the y-axis?
(0, −7)
(−7, 0)
(0, 7)
(0, 2)
20s
Which equation gives the horizontal line that passes through the point (2, 4)?
y = 2
y = 4
x = 4
x = 2
20s
What is the gradient of the line through the points (1, 2) and (3, 8)?
⅓
6
3
5
30s
Which line is parallel to y = 4x − 1?
y = x + 4
y = −¼x − 1
y = −4x − 1
y = 4x + 3
20s
Rearrange 2y = 6x + 8 into the form y = mx + c:
y = 3x + 4
y = 3x + 8
y = 6x + 4
y = 6x + 8
30s
A straight line passes through the origin and slopes downwards from left to right. Which could be its equation?
y = −2x
y = −2x + 1
y = 2x
y = x − 2
30s
What is the gradient of the line 2x + 3y = 12?
−2
⅔
−⅔
2
30s
What is the gradient of the line through (−2, 5) and (4, −7)?
2
½
−2
−½
60s
A line has gradient 3 and passes through the point (2, 1). What is its equation?
y = 3x + 5
y = 3x − 1
y = 3x − 5
y = 3x + 1
60s