Question

Solve the inequality. Graph the solution.

$4k–8\ge 20$

Answer 1

Step 1 : Solve the inequality

We have, $4k–8\ge 20$

$\Rightarrow 4k–8+8\ge 20+8$ [ Add $8$ to both sides ]

$\Rightarrow 4k\ge 28$

$\Rightarrow \frac{4k}{4}\ge \frac{28}{4}$ [ Divide both sides by $4$ ]

$\therefore k\ge 7$

Step 2 : Draw the graph

We have,$k\ge 7$

So, the graph is

Hence, the required solution is $k\ge 7$ and the required graph is shown above.