A. Write an equation for the line in slope-intercept form.
Given the points (-1, 2) and (3,-4)

3x+2y+1=0

hopefully this helps

y = -(2/3)x + 0.5

Step-by-step explanation:

The form of a straight line in slope-intercept form is y=mx+b.  m is the slope an b is the y intercept.  

We can calculate m, the slope, from the two points given.  From that we can calculate b by using one of the two points in the equation.

Slope (m) is the change in y divided by the change in x.  For these two points we can find the x change (3 -(-1)) = 4 (the distance between -1 and 3).  The change in y is (-4-2) = -6.  The slope is therefore (-6/4), or  -3/2.

y = (-3/2)x + b

No enter either point for x and y and calculate b.

2 = -(3/2)*(-1) + b

2 = +(3/2) + b

b = 0.5

y = -(2/3)x + 0.5

Bus = 16 Tourists and Taxi = 4 Tourists

Total = 20 Tourists

Step-by-step explanation:

According to the Question,

Given, 80% of the tourists in a group took a bus and 20% took a taxi. Thus the Ratio of Tourists Travel by Bus toTaxi is 4x:1x.The bus fare per person is 40% less than the taxi fare per person. And Also Given that the bus fare per person is $3 Thus, The Taxi fare per person would be $5.

All together they paid $68 for the tour transportation.

4x × 3 + x × 5 = 6812x × 5x = 6817x =68x=4

And, the Ratio of Tourists Travels by Bus toTaxi is 4x:1x . So,the Tourists Travel by Bus to Taxi is 16 and 4 Respectively . Total = 20 Tourists are in the Group.