🧮 Maths Flashcards
Math: what is the cosine rule
a = sqrt(b2+c2-2bccos(A))
Math: at what angle do a tangent and a radius meet
90°
Math: a triangle with multiple angles of 60° is what
An equilateral triangle
Math: what is the quadratic formula
Math: what is the sine rule
Math: what is the cosine rule for angles
Maths: when doing circle theorum what should you do to all the radei
Label them as symetrical
Maths: what is the symbol for direct proportionality
∝
Maths: what is the equation to find direct proportionality
y = kx
Math: what is the equation of a line perpendicular to y = 2x + 3
y = -1/2x + c
Math: what is an expression
It is a mathematical statement containing numbers and variables, 4m + 5
Math: what is an equation
It is a statement that equals something, 4m + 5 = 6
Math: equation for a straight line
Y=mx+c
Math: what is the area of a trapezium
math: what is the volume of a sphere, its surface area?
math: if the center of a circle is at the point (0, 0) and the circle intersects the y axis at (0, 6) what is the equation of the circle
Maths: how to find the turing point with completing the square
Math: sine rule for area
Maths: what is the equation of this line
y = 1/x
Maths: what is the equation of this line
y = x^3
Math: what is the y intercept of a quadratic curve
y = x^2 + bx + c
Maths: what type of graph is y = a^x
An asymptote
Math: what is the equation of exponential graphs
y = a x b^x
Math: what is truncation
To leave out digits past a certain point without rounding
Maths:
Maths:
Maths: what is it called when a quantity increases by the same percentage repeatedly
It is called exponential growth
Math: when a quantity decreases by the same percentage repeatedly what is it called
Exponential decay
Math: what do you do to find the roots of a function
f(x) = 0
Math: how many digits do you write bearings in
3 e.g. 040 degree bearing rather than 40 degree
Math: what are the 4 types of transformations
- enlargement
- reflection
- rotation
- translation
Math: what is the definition of similar shapes
The 2 shapes are proportional
Matt: what is the definition of congruent shapes
2 shapes are the same (although they can be rotated)
Maths:
Maths: what happens when you divide or multiply an inequality by a negative
The sign flips, < x -1 is the same as >
Math: what is the vertex of a graph
Turning point
Maths: What is the y > 3x + 4 line
Math: what does the dotted line on an inequality graph mean
It means that is is greater than but not equal
- y > 3x + 4
Math: what does the solid line on an inequality graph mean
Greater than or equal to
- y ≥ 3x + 4
Math: line inequality?
Math: what is a triangle number
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