Question 78033This question is from textbook intermedia algebra
: can some please help me .And thanks in advance .
1 )I have to fine the slpoe of the line that passes through the points (-4,1)and (3,8). i believe the answer is M=-1/2 for # 1 waht do you all think please help me .
2)i have to fine the equation ,in slope-intercept form ,of the line that passes through the points (-5,2)and (-4,1)
This question is from textbook intermedia algebra
Answer by chitra(359)  (Show Source):
You can put this solution on YOUR website! Hello.. here goes the solution.
find the slpoe of the line that passes through the points (-4,1)and (3,8).
The slope of the line passing thru 2 points (x1, y1) and (x2, y2) is given by:
Substituting for the points from the given data, we get:
m = 1
This represents the slope of the line.
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
find the equation in slope-intercept form , of the line that passes through the points (-5,2)and (-4,1)
The equation of the line in the slope intercept form is given by:
 ------------(1)
Where m is the slope, which is given by:
substituting the co-ordinates in the slope, we get:
==> m = -1
Now substitute the slope and the one of the co-ordinate in Equation (1). We get:
y - 2 = (-1)(x - (-5))
y - 2 = (-1)(x + 5)
y - 2 = - x - 5
y - 2 + x + 5 = 0
y + x + 3 = 0
represents the equation of the line in the slope intercept form.
hence, the solution.
|
|
|
