Posted by destiny on Friday, October 22, 2010 at 9:00am.
whats the xintercepts of the graph
y = 42x2 + 28x

12th grade  jai, Friday, October 22, 2010 at 11:06am
xintercept: where y is equal to zero.
therefore:
0 = 42x^2 + 28x
0 = x(42x + 28)
x = 0 ; and
x = 28/42 = 2/3
xint: (0,0) and (2/3,0)
so there,, :)
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