This pack includes:
terminology
Linear Functions calculating gradient
sketching straight line graphs
table method
gradient method
dual-intecept method
determining the equation
Case 1 and Case 2
Sneak Peek:
, Functions
LINEAR/STRAIGHT LINE
Terminology:
CONTINUOUS DATA: Things that can be measured (weight, temperature, height etc)
DISCRETE DATA: Things that can be counted (number of girls in a class etc.)
X-AXIS: The horizontal axis (left to right)
Y-AXIS: The vertical axis (up and down)
FUNCTION: a mathematical rule that takes an input (domain/x-value) and maps it
to exactly one output (range/y-value).
EQUATION: a statement asserting that two expressions are equal, indicated by an
equals sign (=). It acts like a balanced scale, where the left-hand side has the same
value as the right-hand side, often featuring variables (unknowns) that need to be
solved.
TAKE A CLOSER LOOK:
y-axis Where the line croses the y-axis is called the “y intercept”. If
you look closely, you’ll see that when y=4, x=0. The x-value is
always 0 at the y-intercept. The reverse is also true: when
x=6, y=0.
x-axis
terminology
Linear Functions calculating gradient
sketching straight line graphs
table method
gradient method
dual-intecept method
determining the equation
Case 1 and Case 2
Sneak Peek:
, Functions
LINEAR/STRAIGHT LINE
Terminology:
CONTINUOUS DATA: Things that can be measured (weight, temperature, height etc)
DISCRETE DATA: Things that can be counted (number of girls in a class etc.)
X-AXIS: The horizontal axis (left to right)
Y-AXIS: The vertical axis (up and down)
FUNCTION: a mathematical rule that takes an input (domain/x-value) and maps it
to exactly one output (range/y-value).
EQUATION: a statement asserting that two expressions are equal, indicated by an
equals sign (=). It acts like a balanced scale, where the left-hand side has the same
value as the right-hand side, often featuring variables (unknowns) that need to be
solved.
TAKE A CLOSER LOOK:
y-axis Where the line croses the y-axis is called the “y intercept”. If
you look closely, you’ll see that when y=4, x=0. The x-value is
always 0 at the y-intercept. The reverse is also true: when
x=6, y=0.
x-axis
