YouTube on MSNOpinion

Putting an linear equation in standard form - cool math

👉 Learn how to write the equation of a line given points, slopes and intercepts. We will work on writing the equation of a ...
YouTube on MSNOpinion

Putting an linear equation when a is negative

👉 Learn how to write the equation of a line given points, slopes, and intercepts. We will work on writing the equation of a ...
BBC

Perpendicular lines - Intermediate and Higher tier

Perpendicular lines will always cross at right angles. To determine if two lines are perpendicular, we need to multiply their gradients together. If the lines are perpendicular to each other, the ...
BBC

Equation of altitudes and perpendicular bisectors

Now use the information you already have about finding the equation of a line and apply it to the dashed lines shown in these triangles. Remember, to find the equation of a line you need a point ...