9) Graphs Flashcards
What does the equation ‘y=1’ mean?
y is always 1.
What does the equation ‘x=3’ mean?
x is always 3.
What is the midpoint of a line segment?
Point exactly in middle.
What is the steepness of a graph called?
The gradient.
How do you find the gradient?
squares up or down ÷ squares across.
What can gradients be?
Positive or negative.
What does a linear equation produce?
Straight line graph.
What produces a straight line graph?
Linear equation.
What do parallel lines have?
Same gradient.
What can you use the y-intercept and gradient to do?
Write equation of line of best fit + other real-life graphs, + use equation to make predictions.
What does a distance-time graph represent?
Journey.
What does the vertical axis in a distance-time graph represent?
Distance from starting point.
What does the horizontal axis in a distance-time graph represent?
Time taken.
What does a horizontal line on a distance time graph represent?
Object at rest.
What is the equation used for calculating average speed?
distance travelled ÷ time taken.
