SOLUTION: find the slope and y-intercept of the line in the given equation y = 4/9x - 20
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Question 447507
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find the slope and y-intercept of the line in the given equation y = 4/9x - 20
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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. -20/-0.4444 = 45.004500450045.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -20/1 = -20.
Slope is --0.4444/1 = 0.4444.
Equation in slope-intercept form: y=0.4444*x+-20.