Question
Write the slope-intercept form of the equation of the line described. 15) through: (4,-1) parallel to y=-(3)/(4)x 16) through: (4,5) parallel to y=(1)/(4)x-4 17) through: (-2,-5) parallel to y=x+3 18) through: (4,-4) parallel to y=3
Solution
4.3
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Mateo
Profissional · Tutor por 6 anos
Resposta
15) The equation of the line is
.16) The equation of the line is
.17) The equation of the line is
.18) The equationy = -4\).
Explicação
## Step 1The slope-intercept form of a line is given by
, where
is the slope and
is the y-intercept.## Step 2For a line to be parallel to another, their slopes must be equal. Therefore, the slope of the new line will be the same as the slope of the given line.## Step 3The y-intercept of the new line can be found by substituting the given point into the equation
and solving for
.## Step 4For the line -\frac{3}{4}x\), the slope is
. Substituting the point (4, -1) into the equation gives
, which simplifies to
.## Step 5For the line parallel to
, the slope is
. Substituting the point (4, 5) into the equation gives
, which simplifies to
.## Step 6For the line parallel to
, the slope is 1. Substituting the point (-2, -5(-5 = 1 * -2 + b\), which simplifies to
.## Step 7For the line parallel to
, the slope is 0. Substituting the point (4, -4) into the equation gives
, which simplifies to
.