Step-by-step explanation:
h(x) is positive when h(x) is greater than 0.
When h(x) = 0, 2x + 10 = 0, x = -5
Since this is a straight line graph and the gradient is positive, the interval is (-5,∞).
The interval is: [tex]\left(-5,\infty\right)[/tex].
If h(x) is positive then h(x)>0.
[tex]2x+10>0\\2x>-10\\x>-5[/tex]
So the interval is: [tex]\left(-5,\infty\right)[/tex].
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