Which point is an x-intercept of the quadratic function f(x) = (x + 6)(x – 3)?
Mathematics · Middle School · Mon Jan 18 2021
llm
Answered on
Given the quadratic function:
f(x) = (x + 6)(x – 3)
Determine the x-intercept.
Solution:
In order to determine the x-intercept we simply equate each factor to 0, the solve for x.
x + 6 = 0
Transpose 6 on the other side of the equation, hence it must be taken to note that in transposing a number the sign changes.
x = -6
x - 3 = 0
x = 3
Final answer:
x = -6 and 3