Quadratics
Factor x^2-16 and find the value(s) of x
What are: 4 and -4
Define a function:
What is: a relation in which each x value is paired with one AND ONLY ONE y value
N, n+1, n+2,... what type of consecutive chain of numbers is this?
A)consecutive odd integers b)consecutive integers c)consecutive even integers
What is: choice b
What is the exponential formula?
What is: A(b)^x
What is it called when a number can be simplified to a rational number when under a radical
what is: a perfect square
The height of a calculator Mrs Farber tossed into the air can be modeled by the function h(x) = -4.9x^2 + 6x + 5, where x is the time elapsed in seconds, and h(x) is the height in meters. The number 5 in the function represents
what is: the initial height
if f(x)=2X-1, what is f(4)-f(2)
What is: 4
The sum of 2 numbers is 104. the larger is 1 less than 2 times the smaller. Find the numbers
What are: 35 and 69
An=4n-1 find a100
What is: 399
What property is used from a(b)+4 to 4+a(b). Also state if it was of addition or of multiplication
The commutative property of addition
A square has one side increased in length by 2 inches an adjacent side decreased by 2. The resulting rectangle has an area of 60 in^2. What was the area of the original square?
What is: 64 in^2
If f(x)=(X-5)/2 what value of x would make f(x)=1
What is: X=7
When Charlie cashed a check for $170 the bank teller gave him back some $20 bills and the rest $10 bills. How many bills of each denomination did Charlie receive?
What are: 5 $20 bills and 7 $10 bills
A population of 15 people who love calculators double each year. What is the percent of increase?
What is: 100%
What is √20 × √3
What is: 2√15
Solve this by completing the square: 5x^2 -2=3x
What is: x=1 and x=-2/5
f(x)=(X/3)+7 If g(x)=2f(x)-1 then what is g(6)?
What is: 17
One side of a triangle is 6 meter less than the second and twice the length of the third side. If the perimeter is 106 meters find the length of the three sides.
What are: 40 meters, 46 meters, and 20 meters
A2=45 and a5=-1215 write a rule for the nth term. Write in the explicit geometric formula AND in the exponential formula
what is: geometric: -15(-3)^n-1
exponential: 5(-3)^n
Simplify √16x^20y^3z^6
What is: 4x^10z^3y√y
Solve by completing the square: y=ax^2 +bx+c
What is: y=a(x+b/2a)+c-b^2/4a
In the function f(x)=2X-3 and g(x)= 3/2(x)+1 which of the following statements is true?
a)f(0)>g(0) b) f(8)=g(8) c)g(4)<f(4)
What is: choice 2
Miles has 24 dimes and quarters worth $3.60. Find how many of each coin he has by creating a chart with one variable.
What are: 8 quarters and 16 dimes
The 4th term of a geometric sequence is 125 and the 10th is 125/64. Find a14
What is: 125/1024
Simplify 6/√3
What is: 2√3