SOLUTION: Find the equation of the line with equal intercepts and passing through the point ( -4, 3/2).

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Question 1184929: Find the equation of the line with equal intercepts and passing through the point ( -4, 3/2).
Found 3 solutions by josgarithmetic, ikleyn, greenestamps:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Intercepts for some number p, (0,p) and (p,0).

slope,

point-slope equation form to include given point (-4, 3/2)






Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.
Find the equation of the line with equal intercepts and passing through the point ( -4, 3/2).
~~~~~~~~~~~~~~~

Since x-intercept is equal to y-intercept, it means that the straight line has an equation of the form

    x + y = C,


for some constant C. In particular, the slope of such straight line is -1.


To find the value of the constant C in equation (1), substitute the coordinates x= -4 and y= 3/2
of the given point into the equation. You will get then

    C = -4 + 3/2 = -2.5.


Therefore, the final form of the equation is

    x + y = -2.5.     ANSWER

Solved, answered and explained.

---------------

In his response,  @josgarithmetic incorrectly treats the condition of equality of intercepts,
therefore,  his  "solution"  is    W R O N G.

For your safety,  IGNORE  his  post.


//////////////


After seeing my response, @josgarithmetic changed everything in his post, replaced and re-wrote it, following to my solution..



Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


If the line has equal x- and y-intercepts, then the slope of the line is -1.

Use that slope and the given point to find the equation.

y-1.5=-1(x+4)
y-1.5=-x-4
y=-x-2.5

ANSWER: (slope-intercept form) y = -x-2.5


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