1.3 Geometry - Coordinates and Graphs Flashcards
1
Q
what is the point of intersection?
A
the origin or
0 (Zero)
2
Q
when plotting graphs using an equation, how do you calculate it?
A
x = the x-axis (added into the equation to find y)
y = the sum of the equation
3
Q
what is the equation for a straight line?
A
y = mx + c
4
Q
in y = mx + c, which is the slope of the line?
A
m
5
Q
in y = mx + c, which is the point where the line crosses the y axis
A
c
6
Q
when the line crosses the x-axis, what is this called?
A
x intercept
7
Q
when c = 0, what does this mean?
A
the line passes through the origin
8
Q
what is y = constant, and x = constant?
A
a parallel straight line to its axis
9
Q
when given two points of straight line, what do you do to find the equation?
A
put both points into the equation y = mx+c and calculate using simultaneous equations
