Finding the equation of graphs and nth term in a sequence Flashcards
1
Q
what is y=mx+c
A
The equation to find the equation of a line graph
2
Q
what does m mean in y=mx+c
A
m means the gradient, or the rise over run
3
Q
what does c mean in y=mx+c
A
c means the y-intercept, or the coordinate that hits the y-axis
4
Q
how do you find the nth term in a sequence?
A
you calculate the difference between two numbers and then figure out the previous number
5
Q
find the nth term of this sequence: 2, 5, 8, 11…
A
3n - 1
6
Q
find the nth term of this sequence: 25, 18, 11, 4
A
-7n + 32
7
Q
True or false: If a sequence goes down, the nth is negative
A
True (optional: and if the sequence goes up, the nth term is positive)