What is K in quadratic equation?

(h, k) is the vertex of the parabola, and x = h is the axis of symmetry. • the h represents a horizontal shift (how far left, or right, the graph has shifted from x = 0). • the k represents a vertical shift (how far up, or down, the graph has shifted from y = 0).

How do you calculate K?

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

What is the value of k in a quadratic equation?

Hence, the values of K for the given quadratic equation to have equal roots are 2 and -2. Note: Here, it is important to note that a quadratic equation can have equal and real roots only when the discriminant of the quadratic equation is equal to zero.

What is the K constant?

The Coulomb constant, the electric force constant, or the electrostatic constant (denoted ke, k or K) is a proportionality constant in electrostatics equations. In SI units it is equal to 8.9875517923(14)×109 kg⋅m3⋅s−2⋅C−2.

What is the value of the K’ constant for the reaction?

K’ = (K)n K’ is the constant for the reaction multiplied by n and K is the constant of the original reaction. Example: What is the value of the equilibrium constant for the reaction, 2 I2(g) + 2 Cl2(g) 4 ICl(g)?

How do you calculate the KC of a forward reaction?

Kc= 4.1 x 10-9 These three equations can be combined to get the desired reaction. Write the first equation backwards. The K for this reaction will be the recipricol of the forward reaction. 2 N2O(g) 2 N2(g) + O2(g) Kc= 1/(1.2 x 10-35) = 8.3 x 1034 Write the second equation backwards and multiply the coefficients by 2.

What is the formula for equilibrium constant in chemistry?

K’ = K1x K2 . . . K1, K2, etc. represent the equilibrium constants for reactions being added together, and K’ represents the equilibrium constant for the desired reaction. Example: Calculate the value of Kcfor the reaction: 2 NO(g) + Br2(g) 2 NOBr (g) using the following information.

What is the relationship between KC and equilibrium expression?

The desired reaction is the reverse of the reaction for which the Kc is known. The equilibrium expression is the reciprocal of that given.