Math Problem Statement
What is the equation in slope-intercept form of the line that passes through the point (2, −4) and is perpendicular to the line represented by y=23x+5 ? A.y=−32x+5
B.y=−32x−1
C.y=23x−4
D.y=23x+2
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Slopes of Perpendicular Lines
Formulas
Slope-intercept form: y = mx + b
Point-slope form: y - y1 = m(x - x1)
Negative reciprocal for perpendicular slopes: m1 * m2 = -1
Theorems
Slope theorem for perpendicular lines
Suitable Grade Level
Grades 8-10
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