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MATH / Line l has equation y=4x−7, and line m with equation y=ax+b is perpendicular to line l at (2,1). What is the y-coordinate of the point on m that has x-coordinate 6?

Problem

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problem

Line

l

has equation

y = 4x - 7

, and line

m

with equation

y = ax + b

is perpendicular to line

l

(2,1)

. What is the

y

-coordinate of the point on

m

that has

x

-coordinate 6?

Plain-text mathematical notation (without MathML)

Line l has equation y=4x−7, and line m with equation y=ax+b is perpendicular to line l at (2,1). What is the y-coordinate of the point on m that has x-coordinate 6?

Original LaTeX notation

Line $l$ has equation $y = 4x - 7$, and line $m$ with equation $y = ax + b$ is perpendicular to line $l$ at $(2,1)$. What is the $y$-coordinate of the point on $m$ that has $x$-coordinate 6?

level

Level 4

type

Algebra

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task_id: a4f5b1ed-c4a3-50c8-a0d1-90f6dd2b9390
task_key: algebra--test--a4f5b1ed-c4a3-50c8-a0d1-90f6dd2b9390
task_revision_id: 2
config / split: algebra / test

Official source

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