Binomial: ex. x + 4, 3x - 7
Trinomial:ex. x^2 + 4x - 8
x^2 + 4x - 21 = 0
y = ab^x
{3, 6, 9, 12, 15, 18, 21}
Median: 12
Mode: No mode
(x + 5) + (2x - 6) + (3x - 8)
f(1) = 6
f(2) = 9
f(3) = 12
f(4) = 15
y = 2(x-3)^2 - 22
y = x^2 - 6x + 8
h = -3
k = -1
this is an example of a minimum
vertex (-3, -1)
The mean of four numbers is 77. If three of the numbers are 60, 76, and 88, what is
the value of the fourth number?
(3x^2 - 4)(6x + 7)
Svetlana's hair is 4 centimeters long. Her hair grows 1.5 centimeters per month. Svetlana wants her hair to grow so that it is at least 7 centimeters long.
Write an inequality to determine the number of months, m, it will take Svetlana's hair to grow so it is at least 7 centimeters long.
y = x^2 + 12x + 32
{5, 3, 4, 7, 6, 6, 8, 9, 12, 11, 9, 10, 2, 5, 6, 4, 4, 5, 6}
Maximum: 12
1st Quartile: 4
2nd Quartile: 6
3rd Quartile: 9
A piece of data on the edge of a performance hard drive platter in a computer moves at about 1319 inches per second. Convert this rate to miles per hour.
Adult: 122
The company's annual profit (in thousands of dollars) as a function of the price of a bracelet (in dollars) is modeled by:
P(x)= - 2x^2 + 16x - 24
What bracelet price should the company set to earn this maximum profit?
The bear population increases at a rate of 2% per year. There are 1573 bear this year. Write a function that models the bear population.
How many bears will there be in 10 yr?
Answer: 1917 Bears
A graphical display where the data is grouped into ranges (such as "100 to 149", "150 to 199", etc), and then plotted as bars.
Similar to a Bar Graph, but in a Histogram each bar is for a range of data.
Also, the bars are connected together in a histogram.
Sam has purchased a $30,000 car for his business. The car depreciates 30% every year.
Depreciation means the value of the car goes down by that percent each year.
What will be the value of the car after the 5th year? Note: The car is 0 years old when purchased so the first year is the second entry in the sequence.
An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height s at time t seconds after launch is
s(t) = –4.9t2 + 19.6t + 58.8,
where s is in meters. When does the object strike the ground?
The population of an endangered bird is decreasing at a rate of 0.75% per year. There are currently about 200,000 of these birds. Write a function that models the bird population. How many birds will there be in 100 yr?
Answer: 94,206 birds
Erica enjoys posting pictures of her cat online. Here's how many "likes" the past 666 pictures each received:
10, 15, 15, 17, 18, 21
Find the mean absolute deviation.
Answer: 2.67 likes
On average, each picture was about 3 likes away from the mean.