What does a linear graph look like Flashcards
What does the graph of linear function look like?
y = mx + c
It is a straight line
What does m in the linear function represent
y = mx + c
It represents the gradient
It measures the slope of the line
When m is positive, what does the line look like
y = mx + c
The gradient is positive and slopes upwards from left to right
When m is negative, what does the line look like
y = mx + c
The gradient is negative and slopes downwards from left to right
What does c in the linear function represent
y = mx + c
It represents the y intercept
It is where the line intercepts the y-axis
When c is positive, what does the line look like
y = mx + c
The line intercepts the y -axis above the x-axis
When c is negative, what does the line look like
y = mx + c
The line intercepts the y -axis below the x-axis
Identify the gradient and y intercept
y = 2x + 3
gradient is 2
y intercept is 3
Identify the gradient and y intercept
y = 2x - 3
gradient is 2
y intercept is -3
Identify the gradient and y intercept
y = -2x - 3
gradient is -2
y intercept is -3
Identify the gradient and y intercept
y = -2x + 3
gradient is -2
y intercept is 3
Which linear function is this
y = 9x + 9
y = 9x -9
y = -9x + 9
y = -9x - 9
y = -9x - 9
Which linear function is this
y = 9x + 9
y = 9x -9
y = -9x + 9
y = -9x - 9
y = 9x - 9
Which linear function is this
y = 9x + 9
y = 9x -9
y = -9x + 9
y = -9x - 9
y = 9x + 9
Which linear function is this
y = 9x + 9
y = 9x -9
y = -9x + 9
y = -9x - 9
y = -9x + 9