Question 824255: Find the equation of the straight line passing through the point (-2,1) and through the point of intersection of 4x-y-1=0 and 2x-y+5=0
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
4x-y-1=0
2x-y+5=0
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put the system of linear equations into standard form
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4x-y=1
2x-y=-5
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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x= 3
y= 11
intersection point = (3,11)
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find the line through the two points:
(-2,1) and (3,11)
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to solve the linear equation, copy and paste this (two given points):
-2,1,3,11
into the "Two-Point form: x1 y1 x2 y2" input box here: https://sooeet.com/math/linear-equation-solver.php
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x-intercept = (-2.5, 0)
y-intercept = (0, 5)
slope = 2
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answer:
the slope-intercept form:
y = 2x + 5
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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