How do you solve and graph 4x^4+36>=13x^2?

1 Answer
SCooke
Jun 27, 2018

Calculate the desired number of data points, and put them on an appropriate graph paper. SOLVING may be done by factoring or graph analysis.

Explanation:

ANY graphing or plotting must start with a table of values of the independent variable and the evaluated expression. With those values you may plot them on graph paper manually, or use a computer plotting program.
We can factor the expression as:
4x^4 – 13x^2 + 36 ≥ 0
[Ax^2 +- B][Cx^2 +- D] ≥ 0
AxxC = 4; BxxC + AxxD = -13; BxxD = 36

The graph is:
enter image source here

Related questions
See all questions in Sign Charts
Impact of this question
1958 views around the world
You can reuse this answer
Creative Commons License