Answer:
Domain is 8 to 15 broomsticks
Range is 1,200 to 2,250 Galleons
Step-by-step explanation:
Here, when we talk of the domain, we are simply referring to the range of values of the number of broomsticks to be bought which is between 8 and 15
When we talk of the range, we are talking of the amount these broomsticks will cost
The cost for 8 broomsticks will be 8 * 150 = 1,200 Galleons
15 broomsticks will cost 15 * 150 = 2,250 Galleons
The range here will thus be 1,200 Galleons to 2,250 Galleons
Answer:

Step-by-step explanation:
To find the equation, use the slope-intercept formula:

m is the slope and b is the y-intercept. Now, it'll really help to draw a line through the points, connecting them. If you look at point (0,2), we can see that this is the y-intercept (where a point sits on the y-axis when x=0). You can insert this into the equation by taking the y value:

Now, take any two points to find the slope. To make it easier, I'll use (1,5) and (0,2). Use the slope formula for when you know two points:

Rise over run is the change in the y-axis over the change in the x-axis. Insert values:

Solve:

Since both are negative, the result is a positive:

Insert this into the equation as m, the slope:

Done.
Answer:
C

Co efficient means the number or value beside preventing the variable from standing alone