05 Straight line graphs Flashcards
1
Q
What equation do you use to find the equation of a straight line?
A
y-y1=m(x-x1)
2
Q
What is the product of 2 perpendicular line’s gradient?
A
-1
3
Q
How do you find the point of intersection for 2 lines?
A
You set the equations equal to each other.
4
Q
What is a line segment?
A
A part of a line.
5
Q
What is the equation to find the midpoint of a straight line?
A
The two ‘x’ coordinates added together and divided by two, and the two y coordinates added together and divided by two.
6
Q
What is the distance formula?
A
The square root of (x2-x1) squared + (y2-y1) squared.
