SOLUTION: which graph best represents the equation of a line with a slope of -4 and a y-intercept of 3?
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-> SOLUTION: which graph best represents the equation of a line with a slope of -4 and a y-intercept of 3?
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Question 545670
:
which graph best represents the equation of a line with a slope of -4 and a y-intercept of 3?
Answer by
saifoo.khan(162)
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Hello,
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DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation
describes a sloping line. For any
equation ax+by+c = 0, slope is
.
X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 3/4 = 0.75.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 3/1 = 3.
Slope is -4/1 = -4.
Equation in slope-intercept form: y=-4*x+3.
Thanks,
Saifoo.khan
einstein.saifoo@gmail.com