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Question 204228: need help urgent!
write the linear function whose graph has the given slope (m) and passes through the given point.
1. m = 1; (-2,-3)
2. m = -4;(0,-3)
write the linear function whose graph passes through the points.
3. (-3,6)(-5,9)
4. (-5,3)(0,6)
write the linear function whose slope y intercept are given.
5. slope 1; y intercept -8
6. slope 4; y intercept -4
write the linear function whose x intercept a and y intercept b are given.
7. a=1; b=5
8. a=3; b=1/2
9-10 Mr. Reyman used 3.2 m of copper wire which weighs 0.45 kg, How much will 6m of copper wire weigh?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! write the linear function whose graph has the given slope (m) and passes through the given point.
1. m = 1; (-2,-3)
Use y-y1 = m*(x-x1) where (x1,y1) is the point
y+3 = 1*(x+2)
y+3 = x+2
x-y = 1
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2. m = -4;(0,-3)
write the linear function whose graph passes through the points.
3. (-3,6)(-5,9)
Find the slope
m = diffy/diffx = (6-9)/(-3+5)
m = -3/2
Do the same as #1, using either point.
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4. (-5,3)(0,6)
write the linear function whose slope y intercept are given.
5. slope 1; y intercept -8
y = mx + b (b is the y-intercept)
y = x-8
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6. slope 4; y intercept -4
write the linear function whose x intercept a and y intercept b are given.
7. a=1; b=5
m = -b/a = -5
Then it's the same as #1, using either point, (1,0) or (0,5).
8. a=3; b=1/2
9-10 Mr. Reyman used 3.2 m of copper wire which weighs 0.45 kg, How much will 6m of copper wire weigh?
It weighs 0.45/3.2 kg/m.
6*0.45/3.2 = 0.84375 kg
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