SOLUTION: find the slope and y-intercept for y=3-x I'm not sure if it's m=-1, b=3 or m=1, b=3
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Question 465093
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find the slope and y-intercept for y=3-x
I'm not sure if it's m=-1, b=3 or m=1, b=3
Answer by
jorel1380(3719)
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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. 3/1 = 3.
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 -1/1 = -1.
Equation in slope-intercept form: y=-1*x+3.