1003206201 | math4u.vsb.cz

SubArea:

Quadratic functions

Level:

Project ID:

1003206201

Accepted:

1

Clonable:

0

Easy:

0

Given

f (x) = 2 x^{2} - 6 x + 8

, find all input value(s) of

f

such that the output value of

f

is

5.5

.

x_{1} = \frac{5}{2}

,

x_{2} = \frac{1}{2}

x = 35.5

x_{1} = 13

,

x_{2} = 11

x_{1} = - \frac{5}{2}

,

x_{2} = - \frac{1}{2}