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donnie1999
 one year ago
 WILL MEDAL 
 HELP PLEASE 
Find the xintercepts for the parabola defined by the equation below.
y = x^2  9x + 18
donnie1999
 one year ago
 WILL MEDAL   HELP PLEASE  Find the xintercepts for the parabola defined by the equation below. y = x^2  9x + 18

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What do you think? What did you get after working it out?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First ask your self what two factors when you times them equals 18 and also sums(add together) up to 9

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.3to find xintercept ...let y = 0

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.3so solve x^2  9x + 18 = 0

donnie1999
 one year ago
Best ResponseYou've already chosen the best response.0i got (0,3) and (0,6)

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.3dont u think it should be (3 , 0) and (6 , 0)???

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1to find x  intercept let the y = 0 (x^29x+18) = 0 so the y's have to be 0 you are solving for the x values

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1consider the 2 numbers 6 and 3. Those numbers work because 6 x 3 =18 (got my last term) 6+3 =9 (got my middle term) so now we can factor (x6)(x3) =0 so now we have 2 cases x  6 =0 and x 3 =0 solve for x and we should have what @rishavraj said

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1the y is fixed at 0 for these cases... since we are looking for xintercept
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