ACT Math 3.2 Coordinate Geometry
ACT Math: Coordinate Geometry Drill 3, Problem 2. What is the slope of a line through the points given?
|ACT Math||Coordinate Geometry|
|ACT Mathematics||Coordinate Geometry|
|Algebra||Coordinates and Graphs|
|Foreign Language||Arabic Subtitled|
|Functions||Interpret expressions for functions in terms of the situation they model|
Translate between the geometric description and equation for a conic section
|Product Type||ACT Math|
|Properties, Measurement, and Dimension||Translate between the geometric description and the equation for a conic section|
by subtracting two points on a graph so in this case check out the points here
on the graph.
4, 7 and -2, 6. The points live here and here
and we can draw a line through them in a slope is here. Line goes a little bit
upward...so double check ourselves we know it's gonna have to have a positive slope
so we can immediately reject C, D and E So in this case
we just subtract the points and put them in the form Y
over X. So take the 7 of the 4, 7 point
and subtract 6 from it. We get 1 in the numerator
now get the x-coordinate. We have 4
minus -2 which is just adding 2
to get 6. So that's slope of 1 over 6. Here it is.
Answer A as in "Abracadabra."