Solve f(x) = g(x). Find the points of intersection of the graphs of the two functions.
-$$\begin{array} { l }
f ( x ) = 7 x + 8 \
g ( x ) = x ^ { 2 }
\end{array}$$
A) $x = 1 , x = - \frac { 1 } { 8 }$
B) $x = 1 , x = 8$
C) $x = - 1 , x = 8$
D) $x = - 1 , x = \frac { 1 } { 8 }$

Question

Solve f(x) = g(x). Find the points of intersection of the graphs of the two functions.
-$$\begin{array} { l } 
f ( x ) = 7 x + 8 \
g ( x ) = x ^ { 2 }
\end{array}$$
A) $x = 1 , x = - \frac { 1 } { 8 }$
B) $x = 1 , x = 8$
C) $x = - 1 , x = 8$
D) $x = - 1 , x = \frac { 1 } { 8 }$

Quizplus · Accepted Answer

To find the points of intersection, set $7x + 8 = x^2$. Rearrange to $x^2 - 7x - 8 = 0$. Solving this quadratic equation gives $x = 8$ and $x = -1$.

Solve F(x) = G(x) f(x)=7x+8g(x)=x2\begin{array} { l } f ( x ) = 7 x + 8 \\g ( x ) = x ^ { 2 }\end{array}f(x)=7x+8g(x)=x2​

Solve F(x) = G(x) $\begin{array} { l } f ( x ) = 7 x + 8 \\g ( x ) = x ^ { 2 }\end{array}$