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Write the equation is slope-intercept form.?
Write the equation of the line that passes through the point (1,-4) and has a slope of -5
Write the equation is slope-intercept form.
A. y = 5x - 1
B. y = -5x + 1
C. y = 4x
D. y = -3x - 5
3 Answers
- multiplythebearLv 410 years agoFavorite Answer
Plug the point and slope into y = mx + b
-4 = -5(1) + b
-4 = -5 + b
b = 1
y = -5x + 1
Option B.
- 10 years ago
The std. form of the eq. is
y=mx+c where m is the slope and c is intercept on y axis.
it passes through point (1, -4)
so -4=(-5)(1)+c
c=-4+5=1
now the eq. becomes y= -5x+1
is the eq. of the line.
- 10 years ago
B
only one answer has the slope of -5
working-as proof
y-(-4) = -5(x-1)
y+4 =-5x+5
y=-5x+5-4
y=-5x+1
