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 square root of 25 is 5
Answer:
b = -16.77
Step-by-step explanation:
We could get a quick estimate from b/8 = -2: b is approximately -16.
For an exact answer, multiply both sides by 7.8: b = -16.77
