Finding the x and y intercept of F(x)=x²+3x-2
asked Aug 3, 2016 in Other Math Topics by andre

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

The y intercept is F(x) when x=0, i.e., F(0), so y intercept is -2.

The x intercept is when F(x)=0=x^2+3x-2. x^2+3x=2; x^2+3x+9/4=2+9/4; (x+3/2)^2=17/4,

Take square root of each side: x+3/2=±√17/2=±2.06155 approx, so x=-1.5±2.06155.

Two x intercepts: 0.56155 and -3.56155. (x=-1.5 which lies halfway between the intercepts is the axis of symmetry.)
answered Aug 3, 2016 by Rod Top Rated User (486,860 points)
Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
79,816 questions
83,632 answers
66,549 users