|Real Number System |||Absolute Value |||Functions and Graphs |||Trigonometry |||Basic Graphing Skills |||Studying a Function |||Algebraic Skills |||Answer Section|
|Section 1 | Section 2 | Section 3 |||Section 4 | Section 5 |||Section 6 | Section 7 | Section 8 | Section 9 | Section 10 | Section 11 | Section 12 |||Section 13 | Section 14 | Section 15 | Section 16 | Section 17 | Section 18 |||Section 19 |||Section 20 | Section 21 | Section 22 |||Section 23 |||Answers|
y - 3 = 6(x + 2) a line through (-2,3) with a slope of 6
y = -2x + 8 a line through (0,8) with a slope of -2
Periodically in Calculus you must recall the Distance Formula, the midpoint of a segment, and the angle of elevation.
|The distance between (3,4) and (-5,8) is
the end points of a line segment, then the midpoint of the line segment is
|Let (-2,4) and (-8,6) be endpoints of a line
segment. To find the midpoint of the segment you can average the
ordered pairs for the endpoints:
If a non-vertical line l intersects the x-axis at an angle t and has a slope of m then tan t = m.
|The line y = (x + 2) + 2, which is the Taylor form for y = x + 4, has a slope of 1 and intersects the x-axis at , therefore . So the angle of elevation for this line is .|
Check Your Understanding: (Remember
to write down your answers.)
8. Find the distance between (-2,6) and (4,8)
9. Find the midpoint of the line segment whose endpoints are (-2,6) and (4,8).
10. Find the angle of elevation for the line