Perpendicular linear graphs

12 questions

1. Which of these statements is true for parallel lines?
2. The gradient of this line is ___.
3. The gradient of this line is ___.
4. The equation of the line drawn below is y = ___x -1.
5. The equation of the line drawn below is y = -{4\over 5}x +___.
6. Using Pythagoras' theorem, the length of this line segment is ___ units.
7. Which of these statements best describes perpendicular lines?
8. Which of these statements is true for perpendicular lines?
9. Which of these diagrams show two lines which are perpendicular?
10. Which of these statements is a correct use of the phrase 'if and only if' (iff)?
11. Which of these is an expression for the length of the line AB?
12. Which of these is equivalent to the equation (m_1 )^2 + (m_2 )^2 + 2 = (m_1 )^2 + (m_2)^2− 2m_1m_2?

License: OGL