Consider the functions g and h given by g(x)=4x and h(x)=16x+2. In the xy-plane, what is the x-coordinate of the point of intersection of the graphs of g and h ?(A) −4(B) −2(C) 0(D) 2
Q. Consider the functions g and h given by g(x)=4x and h(x)=16x+2. In the xy-plane, what is the x-coordinate of the point of intersection of the graphs of g and h ?(A) −4(B) −2(C) 0(D) 2
Set g(x) equal: Set g(x) equal to h(x) to find the x-coordinate of the intersection point.g(x)=h(x)4x=16(x+2)
Recognize base relationship: Recognize that 16 is 4 squared (42).4x=(42)(x+2)
Apply power rule: Apply the power of a power rule: (ab)c=a(b∗c).4x=42∗(x+2)
Set exponents equal: Since the bases are the same, set the exponents equal to each other. x=2∗(x+2)
Distribute and simplify: Distribute the 2 on the right side of the equation.x=2x+4
Subtract to solve: Subtract 2x from both sides to solve for x.x−2x=4
Combine like terms: Combine like terms.−1x=4
More problems from Transformations of quadratic functions