The distance between two towns on a map is 9 centimeters. The actual distance between two towns is 63 kilometers. What is the scale on the map?

1 : 700 000

Step-by-step explanation:

63 km = 6 300 000 cm

Make it a proportion:

9 cm - 6 300 000 cm

1 cm - x cm

x = = 700 000 cm

Here we get that in map 1 cm represents 700 000 cm in reality, so the scale is 1 : 700 000

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )