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anonymous
 5 years ago
y=4x^ +8x +3
What are x intercepts and Y intercept
anonymous
 5 years ago
y=4x^ +8x +3 What are x intercepts and Y intercept

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the last number is your y intercept: that +3. (0,3)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you solve for the equation = 0 to get your x interecpts

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.04x^2 +8x +3 = 0 4(3) = 12 1,12;2,6...2 and 6 work well. (x+6)(x+2) = 0 when either x+6 = 0 or when x+2 = 0

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0your x intercepts are: (6,0) (3,0)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what would be my vertex then?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Vertex is at x = b/2a which is 8/(2*4) = 1 so plug in x = 1 and you get y = 4(1)^2 + 8(1) + 3 which is 1 So your vertex is at (1,1)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0yeah, your vertex is simply halfway between your x intercepts

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0hmmm...... i forgot to divide out my 4 again...... (x+6/4) (x+2/4) (x+3/2)(x+1/2) your x intercepts are (0,3/2) (0,1/2)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you gotta let me know when I make a mistake...im not always gonna be around to catch these things lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0like this blunder o'mine "(0,3/2) (0,1/2)" it should be (3/2,0) (1/2,0) brains going faster than my fingers can keep up :)
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