Is this function growth or decay? Why?
y = 3*(1.5)x
growth
Solve
h - 7 < 3
h < 10
Solve
square root of 40
2 root 10
Find the median of the following data.
27, 39, 49, 20, 21, 28, 38
28
graph
y = 2x
x8
Solve
2x > 14
x > 7
Solve
6 * square root x * square root n
6 * root xn
Find the mode and range of the following data.
12, 8, 4, 8, 1, 8, 9, 11, 9, 10, 12, 8
mode: 8
range: 11
What is the recursive formula for a geometric sequence?
a1 = first term
an = r * an-1
Solve AND graph
2x + 3 > 9
x > 3
6 * square root x7
6x3 * root x
The mean of 6, 8, x + 2, 10, 2x - 1, and 2 is 9. Find the value of x and also the value of the observation in the data.
9
What is the explicit formula for a geometric sequence?
an = a1 * r n-1
What is the rule for multiplying or dividing negative numbers in inequalities.
If you multiply or divide by a negative number then you need to flip the inequality sign.
square root 49x4
7x2
Solve the system of equations
3x - y = 7
2x + y = 8
x = 3
y = 2
Find the mean of the first 5 prime numbers.
9, 7, 11, 13, 2, 4, 5, 5, 16, 18, 19, 21, 23, 23, 27, 29, 29, 35, 2.2, 10.2, 14.7, 5.9
7.6
Write the recursive and geometric formula for the pattern.
16, 8, 4, 2, 1, 0.5
recursive
a1 = 16
an = (0.5) * an-1
explicit
an = 16 * (0.5)n-1
Solve AND graph
7 - x > 2
x < 5
square root 240x7y3
4x3y * root 15xy
4x - 2y = 20
-5x - 5y = -10
x = 4
y = -2
Your quiz grades are 73, 75, 89, and 91. What is the lowest grade you can obtain on the last quiz and still achieve an average of at least 85?
97