Find the x-intercepts (if any)of the graph of the function. If the x-intercepts are irrational, round your answers to the
nearest tenth.
-$$f ( x ) = 2 x ^ { 2 } + 32 x + 126$$
A)x-intercepts: (-9, 0)and (-7, 0)
B)x-intercepts: (9, 0)and (-7, 0)
C)x-intercepts: (-9, 0)and (7, 0)
D)x-intercepts: (9, 0)and (7, 0)

Question

Quizplus · Accepted Answer

To find the x-intercepts, set $f(x) = 0$ and solve for $x$. Thus, $2x^2 + 32x + 126 = 0$. Factoring or using the quadratic formula, we find the solutions $x = -9$ and $x = -7$, corresponding to the points $(-9, 0)$ and $(-7, 0)$.

Find the X-Intercepts (If Any)of the Graph of the Function f(x)=2x2+32x+126f ( x ) = 2 x ^ { 2 } + 32 x + 126f(x)=2x2+32x+126

Find the X-Intercepts (If Any)of the Graph of the Function $f ( x ) = 2 x ^ { 2 } + 32 x + 126$