Answer:
Step-by-step explanation:
<u>Quadratic Function</u>
The quadratic function can be expressed in the following form:
Where a is a real number different from 0, and x1, x2 are the roots or zeroes of the function.
From the conditions stated in the problem, we know
x_1=1+\sqrt{2}, \ x_1=1-\sqrt{2}
Substitute in the general formula above:
Operate the indicated product
To find the value of a, we use the y-intercept which is the value of y when x=0, thus
It follows that
Thus, the required quadratic function is
Or, equivalently
-4 1/4 - (-9 1/2).....distribute the negative thru the parenthesis
-4 1/4 + 9 1/2 .....turn to improper fractions
- 17/4 + 19/2...common denominator is 4
-17/4 + 38/4 ....when ur dealing with 2 different signs, u subtract and take the sign of the largest number
-17/4 + 38/4 = 21/4...turn to mixed number = 5 1/4
OR
once u get to -4 1/4 + 9 1/2...turn to decimals
-4 1/4 = -4.25
9 1/2 = 9.5
-4.25 + 9.5 = 5.25 which equals 5 1/4
Answer:
0.008 meters
Step-by-step explanation:
Answer is (-1, 7)
Hope it will help