UNIT 6: GRAPHS

UNIT 6: GRAPHS

1. y= mx+c

   • 'mx' is the gradient
   • 'c' is the y-axis intercept
   • if an equation says 'y=-4' then the graph would have a horizontal line going through the '-4' co-ordinate on the y-axis

2. THE HIGHER THE GRADIENT OF THE GRAPH, THE STEEPER THE LINE.

   • horizontal: constant speed
   • diagonally down: constant deceleration

3. area under graph: total distance travelled

   • y-intercept does not matter

4. to work out the midpoint of a line you use the following formula:

5. length of a line:

6. acceleration= final velocity - initial velocity/ time

   • VELOCITY: the speed and direction of an object, or change in position over time
   • ACCELERATION: the rate at which an object changes its velocity (m/s^2)
   • DECELERATION: negative deceleration

7. diagonally up: constant acceleration

8. gradient: acceleration of object

9. TRAPEZIUM: (a + b/2) x h

10. LINEAR GRAPH:

11. RECIPROCAL LINE:

12. PARABOLA

13. CUBIC NON-LINEAR:

14. CIRCLE GRAPH:

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