I am using the Descartes Rule of Signs.
f(x) = 3x^4 - 5x³ - x² - 8x + 4
positive zero: 2 or 0.
x = + - - +
There are 2 sign changes : + to - ; - to +.
negative zero: 1.
f(-x) = 3(-x^4) - 5(-x³) - (-x²) - 8(-x) + 4
f(-x) = 3x^4 + 5x³ - x² + 8x + 4
-x = + + - + +
there is only 1 change of sign. - to +.
There are 2 or 0 positive solutions and 1 negative solution.
Answer:
g(x)= 1/4 |x-2| + 1
Step-by-step explanation:
line:
points on same line:
slope based on the points
And the line is moved to the right by 2 units:
So the function becomes:
Considering movement up by 1 unit as well:
This is the final of equation for the line.
Answer:
B
Step-by-step explanation:
