Posted by Anonymous on Monday, April 30, 2012 at 5:34pm.
What is the slope of the line described by the equation below?
y - 9 = -2(x - 8)
- math - visoth, Monday, April 30, 2012 at 5:42pm
first put it in slope intercept form
m is the slope and b will give you the y intercept
y-9 = -2(x-8)
multiply everyting in the parenthesis by -2
y-9= -2x + 16
and then plus 9 from both side
y= -2x + 25
your slope is -2
- math - Reiny, Monday, April 30, 2012 at 5:48pm
the equation is in the form
y - y1 = m(x - x1) where (x1, y1) is a point and m is the slope.
By the "just-looking-at it" principle, the slope is -2
(and a point on it is (8,9) )
Answer this Question
- math,question - okay i really don't understand this problem. It says: Prove the ...
- math - 1. The x-intercept of a line is -3. The y-intercept of a line is 6. What ...
- Algebra - Is it possible to find the slope of a line if the equation has two ys...
- Algebra - Write the equation of a line in slope intercept form that contains (3/...
- math - 1. the x-intercept of a line is -3. the y-intercept of the line is 6. ...
- Math - 1) What is the slope of a line that is parallel to y = 2? 2) What is the...
- Another simple math problem (y=mx+b) - Write an equation in slope-intercept form...
- math/algebra1a - write the equation of the line which has y-intercept (0,5) and ...
- Math - Find the slope of the line described by each equation 7x-6y=42
- math - i have more than one question so if u no any of the answers please tell ...