What is the equation of the quadratic function with a vertex at (2,-25) and an x-intercept at (7,0)?
o f(x) = (x - 2)(x-7)
f(x) = (x + 2)(x + 7)
Of(x) = (x – 3)(x + 7)
f(x) = (x + 3)(x-7)

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given