Answer:
The y-intercept will always be the vertex of the function.
Step-by-step explanation:
The functions with the following form 
are quadratic equations and have a parabolic form, which means the have a vertex. The x coordinate of the vertex is given by the following expression 
. When b is equal to zero, the vertex of the function will always be the y-intercept, therefore the correct answer is the third one.
Answer:
1.77 x 10^6
Step-by-step explanation:
2,200,000-430,000
1,770,000
Answer:
The cost of one donut: 0.59
The cost of one large coffee: 1.075
Answer:
I believe the answer is c.) x=4
Step-by-step explanation:
I saw this on a webpage:
The moment we see “x,” we can consider picking numbers. The key here is contemplating how complicated the number should be. Swim with the current – let the question tell you. A quick look at the answer choices reveals that x could be something simple. Ultimately, we’re just dividing this value by 2, 3, 4, 5, or 6.
Keeping this in mind, let’s think about the first line of the question. If there are 3 times as many adults as children, and we’re keeping things simple, we can say that there are 3 adults and 1 child, for a total of 4 people. So, x = 4.
Now, we know that among our 3 adults, there are twice as many women as men. So let’s say there are 2 women and 1 man. Easy enough. In sum, we have 2 women, 1 man, and 1 child at this picnic, and a total of 4 people. The question is how many men are there? There’s just 1! So now we plug x = 4 into the answers and keep going until we find x = 1. Clearly x/4 will work, so C is our answer. The key was to let the question dictate our approach rather than trying to impose an approach on the question.
A.
You move the 16 to the other side, so you get 4y>-8-16, simplify to get 4y>-24 and divide both sides by 4 to get y>-6
