9
advanced-math

Which form is best for finding x-intercepts?

A

Factored form: y=a(x−p)(x−q)y = a(x-p)(x-q)

B

Vertex form: y=a(x−h)2+ky = a(x-h)^2 + k

C

Standard form: y=ax2+bx+cy = ax^2 + bx + c

D

Linear form

Correct Answer: A

Choice A is the correct answer. Factored form (also called Intercept form) explicitly displays the roots pp and qq. You can read the intercepts (p,0)(p, 0) and (q,0)(q, 0) directly from the equation.

Choice B is incorrect because it is best for finding the vertex. Choice C is incorrect because it is best for finding the y-intercept. Choice D is incorrect because it is not quadratic.

Next
Question 10 →
Back to Set
Set 8: Quadratic Equations and Functions 8