The slope of a line is 1/8. The point (8,9) is on the line. Determine the equation of this line
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OpenStudy (ivettef365):
you need to use the equation y = mx + b
OpenStudy (ivettef365):
do you know how to use the equation
OpenStudy (anonymous):
No, My teacher never taught me it, she just gave me the assignment
OpenStudy (ivettef365):
oh great, well let me explain, on the equation y=mx+b
y= a point on the line
x= a point on the line
m= slope
b = y-intercept
OpenStudy (ivettef365):
now you have slope of 1/8, points (8,9) equivalent to (x,y)
all you need to find is the y-int, value of b
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OpenStudy (ivettef365):
so the way you set up the equation as follows:
y = mx + b
9 = 1/8(8) + b can you solve for b
OpenStudy (anonymous):
is b 8?
OpenStudy (ivettef365):
correct
OpenStudy (ivettef365):
so the way you right the equation as follows
y = 1/8x + 8 (you don't put values on x,y, because that represents all the point that passes through that line
OpenStudy (anonymous):
ohh okay thank you
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