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- Why are quadratic equations set equal to 0? - Physics Forums
First, quadratic equations are NOT necessarily set equal to 0 That is one way of solving a quadratic equation because then if we can factor we can use the "zero product property": if ab= 0 then either a= 0 or b= 0
- Why Solve Quadratics? Practical Examples of Their Use - Physics Forums
Of all the material I learned in grade 11 math, solving quadratics and finding roots of other polynomials has probably been the most useful Mar 29, 2016 #7
- Kinematics: when to use the quadratic formula? - Physics Forums
Hi PF, I'm reviewing my notes from class, starting from the very beginning I'm working on some problems using kinematic equations Here's one example: a ball falls from 30m (using down as the positive direction) at a velocity of 8 m s how long does it take the ball to hit the ground? Why do I
- How Do You Factor a Quartic Polynomial into Quadratics? - Physics Forums
I think this problem is as difficult as finding roots of a quartic polynomial In the case of a cubic polynomial, we want to factor ##x^3 + bx^2 + cx + d## into ##(x^2 + px + q)(x + r)##, but this is just the same as finding the root x = -r and doing the division, and we know finding the root is difficult
- Application of quadratic functions to volleyball - Physics Forums
Homework Statement A player hits a volleyball when it is 4 ft above the ground with an initial vertical velocity of 20 ft s (equation would be h = -16t2 + 20t + 4) What is the maximum height of the ball? Homework Equations quadratic formula The Attempt at a Solution t = -20 ±√202 - 4(-16)(4)
- How to isolate x in a quadratic equation - Physics Forums
Homework Statement I just would like to know how would I isolate x in a quadratic equation such as y = x(3-x) Homework Equations quadratic equation The Attempt at a Solution I don't think you can use completing square in this, and quadratic equation doesn't really
- Inflection points theorem for quadratic functions. - Physics Forums
The roots of the quadratic equation are found at equal distance of the point where minimum maximum value is obtained for ax^2 + bx +c meaning
- Quadratic functions: [Diagram Included] Football game scenario
Homework Statement You are the quarterback for the Quinte Saints Football team You are in the middle of the COSSA gold medal game and you see your receiver is wide open down the field beside the sideline If he catches the ball, you win the game However, the biggest guy Joey from the
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