SOLUTION: (c) Use the gradient-y-intercept method to draw the graph of 5x + 2y + 3 = 0 and read the following from your graph: y when x = -1½ and x when y = ½.

Algebra ->  Graphs -> SOLUTION: (c) Use the gradient-y-intercept method to draw the graph of 5x + 2y + 3 = 0 and read the following from your graph: y when x = -1½ and x when y = ½.      Log On


   

Question 1053842: (c) Use the gradient-y-intercept method to draw the graph of 5x + 2y + 3 = 0 and read the following from your graph: y when x = -1½ and x when
y = ½.
Found 2 solutions by stanbon, ewatrrr:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Use the gradient-y-intercept method to draw the graph of 5x + 2y + 3 = 0 and read the following from your graph: y when x = -1½ and x when y = ½.
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y = -(5x+3)/2
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y = (-5/2)x - (3/2)
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f(-3/2) = (-5/2)(-3/2) - (3/2) = +15/4 - (6/4) = 9/4
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f(1/2) = (-5/2)(1/2) - (3/2) = -5/4 - 6/4 = -11/4
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Cheers,
Stan H.
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Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
5x + 2y + 3 = 0
y = (-5/2)x - 3/2
P(1,-4) and P(0,-3/2) on this line: Plot and connect
(-3/2 ,2) and (-4/5, 1/5) are the points in question