Data Analysis
Definition of single variable data
Data that only has one variable e.g. age
A function with the highest power of x being 2
What is a quadratic/parabola
Simplify 2(g + 8)
What is 2g + 16
9 x 9 x 9 x 9 in index form
What is 94
Simple Interest earned on a $1000 investment at 5% p.a. for 2 years
What is $100
Definition of bivariate data
Data that has two variables e.g. height and weight
A function that is increasing (or decreasing) at an increasing (or decreasing) rate
What is an exponential
Solve 4x + 18 = 7x + 81
What is x = -21
What is b3n15
Simple interest earned on a $530 investment at 4.5% p.a. for 5 years
What is $119.25
The dependent variable
What is the variable that is measured in an investigation
The equation of a quadratic function that has been shifted up 3
What is y = x2 + 3
Solve 3x < 78
What is x < 26
7.8 x 106 as a basic numeral
What is 7 800 000
Total value of a investment when $4000 is invested at 3% p.a. compound interest for 5 years
What is $4637.10
The independent variable
What is the variable changed in an investigation
The equation of a quadratic function that has been shifted to the left 8
What is y = (x + 8)2
Solve -6x < 72
What is x > -9
0.000000632 in index form
What is 6.32 x 10-7
Total value of a $750 investment at 2.6% simple interest for 4 years
What is $826
The definition of correlation in data displays
What is the relationship or connection between variables, could be strong, weak positive or negative
The equation of a quadratic function that has been shifted down 2 and right 2
Solve -4x + 8 < 64
What is x > -14
Simplify 5-15 x 523
What is 58 or 500 000 000
A car was bought new for $25 000. It depreciated at a rate of 15% p.a.. Calculate the value of the car after 6 years
What is $9428.74