Data
a type of graph used to display the relationship between two variables.
What is a scatter plot?
a sequence of numbers where each term is found by multiplying the previous term by a constant factor
What is a Geometric sequence?
the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.
What is an Inequality
the length of the shortest path between two points.
What is distance?
ax^2 + bx + c = 0
What is the quadratic formula?
A teacher recorded the following test scores for her class: 78, 85, 92, 88, and 81. What is the mean (average) test score?
84.8
A small town has a population of 1,000 people. If the population grows at a rate of 5% per year, what will the population be after 3 years? Use the formula P=P0(1+r)t where P0 is the initial population, r is the growth rate, and t is time in years.
Approximately 1,158 people
Solve the absolute value inequality:
∣2x−4∣≤6∣2x−4∣≤6
−1≤x≤5
the point that is exactly halfway between two given points.
What is Midpoint?
Solve for x:
x2−5x+6=0
x=2 or x=3
The ages of participants in a study are as follows: 22, 24, 19, 25, 30, and 28. What is the median age of the participants?
24.5
A culture of bacteria starts with 200 bacteria and doubles in size every 4 hours. How many bacteria will be present after 12 hours?
1,600 bacteria
A school is planning a field trip and can accommodate a maximum of 120 students. If the number of students attending the trip is represented by xx, write an inequality to represent this situation and solve for xx.
x≤120
√((x₂ - x₁)² + (y₂ - y₁))²
What is the Distance formula?
Solve for y:
2y2+3y−5=0
y=1 or y=−2.5
A student recorded the number of books read in a year by her classmates: 5, 7, 3, 9, and 4. What is the range of the number of books read?
6
An investment of $1,500 is made in an account that earns 6% interest compounded annually. What will the investment be worth after 5 years? Use the formula A=P(1+r)t where A is the amount of money accumulated after n years, including interest.
Approximately $2,007.34
Solve for y:
5y−4≥21
y≥5
(2x1+x2 over 2,2y1+y2 over 2)
what is the Midpoint Formula
Solve for z:
z2+4z+4=0
z=−2
In a survey about favorite fruits, the following results were obtained: apple, banana, orange, apple, grape, banana, apple. What is the mode of the favorite fruits?
Apple
A certain radioactive substance has a half-life of 3 years. If you start with 80 grams of the substance, how much will remain after 9 years?
10 grams
Solve for a:
−4a+5≤13
a≥−2
Given the points A(2,3)A(2,3) and B(8,7)B(8,7):
1. 7.21
2. (5,5)
Solve for a:
3a2−12=0
a=2a or a=−2a