Linear Graphs Flashcards
1
Q
y = mx + c
What is m?
A
Gradient
2
Q
y = mx + c
What is c?
A
The y-intercept
3
Q
y = 4x + 6
What is the gradient?
A
4
Remember: just 4. NOT 4x
4
Q
y = 5x - 7
What is the y-intercept?
A
-7
5
Q
2y = 4x + 6
What is the gradient?
A
Don’t forget to rearrange in the form y = mx + c
Answer: 2
6
Q
A line that slopes UPWARDS left to right is…
Positive or negative gradient?
A
Positive
7
Q
A line that slopes DOWNWARDS left to right is…
Positive or negative gradient?
A
Negative
8
Q
Is the point (4, 5) on the line y = 2x + 1?
A
Substitute x = 4 into y = 2x + 1
y = 2(4) + 1 = 9
y = 9, so NO the point (4,5) is not on the line
