Question

the function y=30+5x (represents the cost) in dollars of having your dog groomed where x represents buying extra services.graph the function using the 6 values of its domains.

Answer 1

Given function y = 30 +5x for the dog groomed

where x represent the value of the buying extra service

The equation is the linear equation so the graph will be staright line

For the coordinates of the graph, set any value for x and then solve for the y .

The x and y value are the coordinates:

Let for x = (-3)

y= 30+5(-3)

y=15

So coordinate 1. (-3,15)

Let for x = (-4)

y= 30+5(-4)

y=10

So coordinate 2. (-4,10)

Let for x = (-5)

y= 30+5(-5)

y=5

So coordinate 3. (-5,5)

Let for x = (-6)

y= 30+5(-6)

y=0

So coordinate 4. (-6,0)

Let for x = (-7)

y= 30+5(-7)

y=-5

So coordinate 5. (-7, -5)

Let for x = (-8)

y= 30+5(-8)

y=-10

So coordinate 6. (-8, -10)

Plot the resulting six coordinates on the graph :