how to express an arithmetic or geometric sequence in terms of k
recursive formula
300
solve the system
y=x+4
y=5x-2
(1,3)
300
write the explicit formula:
{1,3,5,7...}
a[k]=2(k-1)+1
a[k]= a sub k
300
convert to vertex form and write the vertex point:
y=2(x+7)(x+5)
y=2(x+6)^2+2
vertex: (-6,2)
300
simplify:
(4d-6d^3+3d^2+7) - (9d^3-7d-2)
-15d^3+3d^2-3d+9
400
a relationship or expression involving one or more variables
function
400
solve the system:
y=3x+9
y=x^2+4x+3
(2,15)
(-3,0)
400
write the recursive formula:
{3,30,57,84...}
a[n]= a[n-1] + 27
a[n]=a sub n
400
solve for the x-intercepts; round to the nearest hundredth if necessary:
x^2-5x=14
x=7; x=2
400
find the five # summary:
0,1,10,12,16,9,7,14,13,17
min:0
LQ:7
median:11
UQ:14
max:17
500
a relationship in which the dependent y values increase as the independent x values increase as well
positive correlation
500
solve the system of inequalities:
y≤2x
-4y≥-x
domain: x≥0
range: y≤0
500
write the sequence (with at least 4 numbers):
a[k]=a[k-1] • 1/4
a[1]=64
{64,16,4,1...}
500
You drop a towel from a balcony 18 feet above your kitchen onto a table that is 3 feet above the ground. How long is the towel in the air? Round to the nearest hundredth.