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Teachers & SchoolsACT 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 Slope The relations between equations and graphs |
Foreign Language | Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled |
Geometry | Coordinate Geometry |
Language | English Language |
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.