ACT Math 3.3 Coordinate Geometry
ACT Math: Coordinate Geometry Drill 3, Problem 3. What is the standard form equation for the line?
|ACT Math||Coordinate Geometry|
|ACT Mathematics||Coordinate Geometry|
|Algebra||Coordinates and Graphs|
|Coordinate Geometry||Graphs of points, lines, polynomials, and circles|
The relations between equations and graphs
|Foreign Language||Arabic Subtitled|
|Product Type||ACT Math|
and its -1/2. Already we can fill in the equation to be Y equals -1/2 X plus B.
Well the question gives us one point the line is going to intersect
and we know that the slope is gonna be gently negatively sloping
at minus a half. So rewrite the equation to be one equals -1/2
times 3/4 plus B. Then just solve and we have one
equals -3/8 plus B. Add 3/8 to both sides
and we have 1 3/8 equals B. Glance at the potential answers and we see that there
is no 1 3/8, but there is an 11/8.
So that's the form they want this thing in and now we can write the equation as
Y equals -1/2 X plus 11/8 and the answer is D.