Cari persamaan garis yang melalui titik (6,4) dan titik (8,10)!
Tentukan persamaan garis yang melalui titik (4,-3) dan mempunyai gradien -2!
Answers
Find the equation of the line going through point (6,4) and point (8,10)
Find the equation for the line that passes through the point (4, -3) and has a slope of -2
Solution:
line going through point (6,4) and point (8,10)!
y - 4 = {( 10 - 4)/(8 - 6 ) } (x - 6)
=> y - 4 = 3(x - 6)
=> y - 4 = 3x - 18
=> 3x - y = 14
3x - y = 14 is the equation of the line going through point (6,4) and point (8,10)
equation for the line that passes through the point (4, -3) and has a slope of -2
y -(-3) = - 2(x - 4)
=> y + 3 = -2x + 8
=> 2x + y = 5
2x + y = 5 is the equation for the line that passes through the point (4, -3) and has a slope of -2
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