12th grade
posted by destiny on .
whats the xintercepts of the graph
y = 42x2 + 28x

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,, :)