Terminology
What does C represent in this equation? y = mx + c
The y intercept
What is the gradient?
The gradient is the measure of the slope of the line.
(How steep a line is)
What is the equation of a straight line?
y = mx + c
or
y - b = m(x - a)
What is the gradient of this line?
y = 2x - 3
if a + b = 12 and a = 1/2, what is b?
11 and a half.
What does m represent in this equation? y=mx + c
The gradient
What is the gradient of the line with a rise of 4 and a run of 2?
m = 2
Find the equation of the straight line with gradient 2 and y-intercept 3
y = 2x + 3
What is the gradient of this line?
y = -3/8x
-3/8
I think of a number, double it and add 3. I get to 27. What is my number?
12
Where a linear equation cuts or intercepts the y-axis.
What is the gradient of the line with a rise of -3 and a run of 2?
The gradient = -3/2
Find the equation of the straight line with gradient -3 and y-intercept6
y = -3x + 6
State the gradient and y-intercept of the following straight line
y = 3x + 7
m = 3
c = 7
Find the gradient of the straight line between the points (1,5) and (4,11)
m = 2
What is the horizontal axis called on a Cartesian Grid?
The x-axis
Is a line with gradient of 2 (m=2) steeper or less steep than a line of gradient 3 (m=3)?
less steep
Sketch a graph of the line with equation y=2x-1
Teacher
State the gradient and y-intercept of the following straight line
2y = 4x - 10
m = 2
c = -5
How many teeth does an adult human have?
32!
What is the point (0,0) called on a Cartesian Grid
The origin
What is the gradient of the x-axis?
m = 0
Sketch a graph of the equation
y = -2/5x +3
Teacher to check
State the gradient and y-intercept of the following straight line
3y = -12x + 18
m = -4
c = 6
-8 - (-2) + 20 =
14