Systems of Equations
Exponents
Fun with Functions
Quadratics
Random
100
Solve the system of equations by elimination.
-3x-y=-5
2x-2y=-2
What is
(1,2)
100
Given the following exponential function, identify whether the change represents growth or decay.
y = 65 ( 1.03 )^x
What is exponential growth.
100
A group consisting of 21 aggressive zombies quadruples in size every hour. What type of function can be used to represent the growth of zombies each hour?
What is an exponential function.
100
Rewrite in standard form:
(4n+7)^2
What is:
16n^2+56n+49
100
What is the solution to a system of equations?
What is an ordered pair.
200
Solve by substitution:
2y=x+1
-2x-y=7
What is
(-3,-1)
200
Given the following exponential function determine the percentage rate of increase or decrease.
y = 9200 ( 1.018 )^x
What is a 1.8% increase.
200
Evaluate the function for f(3):
f(x) = -4x^2 - x+12
What is
f(3)=-27
200
Solve by factoring:
5p^2-9p-2=0
What is
p=-1/5, 2
200
Simplify:
(2x^2+7x+3)-(x^2-7x+1)
What is:
x^2+14x+2
300
Solve the system.
x + y = -2
4x - 6y = -38
What is
(-5,3)
300
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y = 990 ( 1.922 )^x
What is exponential growth and 92.2% increase.
300
Factor
10v^2-27vw+18w^2
What is
(2v-3w)(5v-6w)
300
A rectangular garden has a length of 4x+6 and a width of 4x-2. Write an expression that represents the area of the garden.
What is:
(4x-2)(4x+6)
or equivalent.
300
Does the data in the scatter plot suggest a linear or non-linear association?
What is a non-linear association.
400
A test has twenty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice questions worth 11 points each. Write a system of equations to represent how many True/False and multiple choice questions are on the test.
What is
x+y=20
3x+11y=100
400
Write an exponential equation given the following table:
What is
y=1(1/2)^x
400
What type of function is depicted in the table?
What is quadratic.
400
A ball is thrown into the air. The height, h, in feet, of the ball can be modeled by the equation:
h(t)=-16t^2+20t+6
where t is the time, in seconds, the ball is in the air. When will the ball hit the ground? Round your answer to nearest hundredth if necessary.
What is 1.5 seconds
400
What is the domain of the function:
f(x)=1/3x-20
What is all real numbers.
500
The Lakers scored a total of 80 points in a basketball game against the Bulls. The Lakers made a total of 37 baskets. Assuming all points were from two- or three- point shots, how many two-point shots did the Lakers make?
What is 31 two-point shots.
500
$3,300 is placed in an account with an annual interest rate of 8.25%. How much will be in the account after 26 years, to the nearest cent?
What is
y ≈ 25920.27
500
What is the range of the following function:
g(x)=-(x-2)^2-4
What is
-oo<=g(x)<=-4
500
Find the coordinates of the vertex of the graph of the function.
y=2x^2 + 12x + 10
What is
(-3,-8)
500
Solve by completing the square:
x^2+14=8x
What is
x=4+-sqrt(2)