Graphs Flashcards
1
Q
Straight line equations
A
y = mx + c
2
Q
what is m in line equations
A
gradient
3
Q
what is c in line equations
A
y intercept
4
Q
what is the gradient
A
steepness of a line
5
Q
formula for gradient
A
m = rise/run
6
Q
gradient of line with point ( 0 , 3 ) (2, 9)
A
m = 6/2 = 3
7
Q
equation of line with point ( 1 , 3 ) ( 3 , 11 )
A
y = 4x - 1
8
Q
quadratic equation formula
A
y = x^2 + 3
9
Q
Quadratic equation are shaped …
A
parabola
10
Q
the lowest point of the parabola is called…
A
the vortex
11
Q
Three stages of real life graphs
A
person starts at origin and moves at steady speed / distance doesnt change, person stays still/person returns to origin at steady speed
12
Q
gradient in real life graphs is…
A
speed
13
Q
formula for speed
A
speed = distance/time
