SOLUTION: problem rate of change and slope algebra 1 chapter 4 glencoe algebra problem i need to be solve here goes find the slope of the line that passes through each pair of points (4,9),(

Question 247793: problem rate of change and slope algebra 1 chapter 4 glencoe algebra problem i need to be solve here goes find the slope of the line that passes through each pair of points (4,9),(1,6) (-4,-1),(-2,-5) (1,-2), (6,2) (4,3.5),(-4,3.5)
Found 2 solutions by solver91311, richwmiller:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Use the slope formula:

Where and are the coordinates of the given pair of points.

You get to do your own arithmetic.

John

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
slope m is m=(y1-y2)/(x1-x2)
where y1 is the first y and y2 = the second y
where x1 is the first x and x2 = the second x
(4,9),(1,6)
(-4,-1),(-2,-5)
(1,-2), (6,2)
(4,3.5),(-4,3.5)
be sure to pay attention to the signs and make sure you are plugging in y's and x's
minus a minus is plus
x is before the comma and y is after the comma
so for the first set of points
remember y's on top
(9-6)/(4-1)
second
[-1-(-5)]/[-4-(-2)]
third
[-2-2]/(6-1)
fourth
[3.5-3.5]/[4-(-4)]
what does a zero in the numerator mean? no slope =horizontal line
what does it mean when there is a zero in the denominator? undefined slope= vertical line

RELATED QUESTIONS
I have a problem that I need help working out completely. When I tried to work it out the (answered by hayek)
Good morning helpful tutors, I have a word problem which is in the factoring polynomials (answered by Alan3354)
Please help me with the following problem, the directions read: Graph the equation.... (answered by scott8148)
For which 5-years time period was the rate of change the greatest? the least? Algebra 1 (answered by Alan3354)
Please help me solve this question. On page 499 in the Glencoe Algebra 1 book, problem... (answered by checkley75)
Good evening, I am taking an Algebra class for the first time after 50 years, and can not (answered by FrankM,ikleyn)
Could you please help me solve the folllowing problem , "Express 32 ppounds per square... (answered by Mathtut)
Working on the following problem for 7th grade Algebra: Write an equation in... (answered by josmiceli,MathLover1)
p+(-8)<(and equal to) -12 This problem is from the glencoe pre-algebra practice... (answered by rapaljer)