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y-intercept = 3 So c = 3. Example 1. By examination of the graph, state the equation of the line in the form y = mx+ c. - 6. 3. y = -2 x + 3. Example 2. Calculate the length of the line from C(-4,12) to D (7.-3). Example 5.
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y-intercept = 3 So c = 3 Example 1 By examination of the graph, state the equation of the line in the formy = mx+ c - 6 3 y = -2x + 3
Example 2 Calculate the length of the line from C(-4,12) to D (7.-3)
Example 5 Write down the gradient of the lines perpendicular to the given line
Example 6 PQ makes an angle of 32º with the positive direction of the x-axis. RS is perpendicular to PQ. Find the gradient of RS.
Example 7 • T(-6,3), U(1,4), and V(-5,-4) are the vertices of triangle TUV. • M is the mid-point of UV. • Calculate mVU and mTM • (b) Explain why triangle TUV is isosceles. M (-2,0)