3 years ago

How do you graph a linear inequality in two variables

1 answer:

7 0

The graph of an inequality in two variables is the set of points that represents all solutions to the inequality. A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥. The half-plane that is a solution to the inequality is usually shaded.
Example:

Is (1, 2) a solution to the inequality
2x+3y>1
2times1+3times2>1
2+5>1
7>1

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Please help mee!!!<br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%2B6%7D%7B-2%7D%3D-1" id="TexFormula1" title="\frac{x+6}

Misha Larkins [42]

Multiply both sides with -2
X + 6 = 2
X = 2 - 6
X = -4

3 0

3 years ago

Read 2 more answers

If f(x) = x^3 – 10x^2 + 29x – 30 and f(6) = 0, then find all<br> of the zeros of f(x) algebraically.

tino4ka555 [31]

Step 1: 1

(((x3) - (2•5x2)) + 29x) - 30 = 0

Step 2 2.1 x3-10x2+29x-30 is not a perfect cube

Step 3 Factoring: x3-10x2+29x-30

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: 29x-30
Group 2: -10x2+x3

Pull out from each group separately :

Group 1: (29x-30) • (1)
Group 2: (x-10) • (x2)