Answer all the questions below and press submit to see how many you got right.
Line : A line AB is a one-dimensional shape that includes the points A and B, all the points on the line segment in between A and B and all the points of the straight extension of the line segment beyond A and B. A line does not have an endpoint.
Linear : Linear means in a way that can be described by a combination of addition and scalar multiplication. See also linear function, linear equation and linear combination.
Negative : A number is negative if it is $\lt 0.$
Positive : Positive means $\geq 0.$
Scatter plot : A way to visualize the dependency realtionship between two variables. Every common outcome of the two variables is plotted as a point in the coordinate system by having the x-coordinate of the point equal to the outcome of the first variable and the y-coordinate of the point equal to the outcome of the second variable.
Variable : A letter in an expression or function that represents an arbitrary number.
How can you describe the relationship between the two variables plotted in the scatter plot?
Addition : Addition is the mathematical operation that describes increasing a number by an amount equal to a second number. The mathematical symbol for addition is the plus sign $+.$ The term addition is also used for a generalization of this basic operation on numbers to functions, vectors and matrices.
Angle : If two line segments (or rays) both start at a common point the opening between the two line segments is called an angle. The common point is called vertex of the angle. The size of an angle is measured in degrees.
Parallel : Two lines in a two-dimensional plane are called parallel if they never cross.
Perpendicular line : Two lines are called perpendicular if they cross in a right angle.
Point : A point is an element in a space. Shapes are made of sets of points.
Right angle : A right angle is an angle equal to $90^{\circ}.$
Two lines cross each other in point A. Choose all statements that are true about the four angles that are formed at A.
Number : A number $x$ is a mathematical symbol representing a quantity.
Power : A power is a number of the form $a^b.$ $b$ is called the exponent of the power and $a^b$ is called a power of $a$. For natural numbers $b$ the number $a^b$ is an abbreviation for successively multiplying $a$ by itself $b$ times. For example $2^3=2\cdot 2\cdot 2=8.$ For fractional exponents $b=\frac{p}{q}$ the number $a^{\frac{p}{q}}$ is defined as $\sqrt[q]{a^p}.$ For arbitrary real exponents $b$ the power $a^b$ is defined as the limit of $a^{b_n}$ with rational $b_n$ that converge towards $b.$
What is ${2}^{0}$?