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Question 146550: Question 1: Find the slope and the y intercept of the line. Write fractional answers in lowest terms.
9y+7x+7=14+7x
Question 2: Find the slpe if it exits of the line containing the pair of points.
(1,5) and (4,-3)
The sllope m= ?
Question 3: Find an equation of the line containing the given peir of points.
(-5,-3) and (-1,-2)
The equation of the line is y?
Answer by aswathytony(47)   (Show Source):
You can put this solution on YOUR website! 1) 9y + 7x +7 = 14 +7x
9y +7x - 7x +7 -14 =0
9y -7 =0 ; 9y= 7
y = 7/9 ; This is the equation of a horizontal line of the form y=b. here
slope m=0. y -intercept = 7/9.
2)slope of the line containing points (x1,y1) & (x2,y2) is y2-y1/x2-x1
slope of line containing (1,5) & (4,-3)= (-3 - 5) /(4-1)
= -8/3
3) equation of line containing (x1,y1) & (x2, y2)
x-x1/x2-x1 = y-y1/y2-y1
equation of line containing (-5,-3) &(-1,-2)
x-(-5)/-1 - (-5) = y - (-3)/-2 - (-3)
x+5/4 = y+3/1
x + 5 = 4 (y+3)
x+5 =4y +12
x- 4y +5 -12 =0.
x - 4y -7=0. this is the equation of the line.
or -4y = -x +7
y = -x/-4 + 7/-4
y= x/4 -7/4.
here slope = 1/4 and y intercept =-7/4.
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