2 years ago

10. Use the discriminant to find the values of b for which the equation 4x2 + bx + 1 = 0 has one real solution.

Mathematics

1 answer:

il63 [147K]2 years ago

8 0

Answer:

b = 4, or -4

Step-by-step explanation:

b^2 - 4*4*1 = 0

b^2 = 16

b = 4, or -4

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Given h of x equals negative 2 times the square root of x minus 3 end root, which of the following statements describes h(x)?

MrMuchimi

Answer:

The function h(x) is decreasing on the interval (3, ∞).

Step-by-step explanation:

Please take a look at the attached image.

You will see a graph of the given function h(x) = -2 $\sqrt{x-3}$ . The function is decreasing.

The function starts at 3 and starts to go towards negative infinity on the x-axis. Therefore the function is decreasing on the interval (3, ∞).