Help pls
slope from graph

Answer:

How fast are you driving, in miles per hour, if you travel 18 miles in 3/4 hour?

Step-by-step explanation:

I have just taken the quiz and its correct.

Answer: 3:2, speaking from experience.

Of the provided graphs, the second would be the correct answer.

Functions occur when the input only has one possible output (though the output can be recieved through multiple inputs)

The relation shown in the 2nd diagram is a function.  The reason for this is that one and only one y-value is associated with each x-value.  

Note that this is not true of the first diagram.  If x=0, there are two separate y vaues associated: -1 and 2.  This clearly states that the first diagram does not represent a function.

The correct answer is 370. A system of equations can be used, where h represents the number of calories in a hamburger and f represents the number of calories in an order of fries. The equation  2 h plus 3 f equals 1,700 represents the fact that 2 hamburgers and 3 orders of fries contain a total of 1700 calories, and the equation  h equals f plus 50 represents the fact that one hamburger contains 50 more calories than an order of fries. Substituting  f plus 50 for h in  2 h plus 3 f equals 1,700 gives  2, parenthesis, f plus 50, close parenthesis, plus 3 f, equals 1,700. This equation can be solved as follows:

 2 f plus 100 plus 3 f equals 1,700

 5 f plus 100 equals 1,700

 5 f equals 1,600

 f equals 320

The number of calories in an order of fries is 320, so the number of calories in a hamburger is 50 more than 320, or 370.