Number 5 is x = 18 and number 6 is x = -2
Answer:
The answer is y = 5/2x - 3!!
Step-by-step explanation:
You can check this on Desmos, by typing in the coordinates you have and then this equation and you can see the line goes right through them!! Hope this helps!!
<h3>
Answer: 2</h3>
Explanation:
The range is y ≤ 2 which means that y = 2 is the largest y can get. The parabola opens downward to form a sort of "frowny face" so to speak. When moving down the parabola, we'll cross the x axis at two different spots. An example of this is shown below with the equation y = -x^2+2.
There's no connection between the '2' in y ≤ 2 and the final answer of 2 roots. We could easily have a range of something like y ≤ 5 or y ≤ 8 and the answer will still remain as 2. The most roots a parabola can have is 2.
All this is, is plugging in numbers. Then taking the square root of it. The first one would be the square root of 6 squared - 4(5)(-3). That would simplify to the square root of 36+60. Then add the numbers to get the square root of 96. The square root of 96 is about 9.798. I hope that helped. If you still need help with the second one or with the rest of the formula (if there is one) just ask!
Exponential Decay because it’s decaying by .5 which is smaller than 1