What is an equation of the line that passes through the points (4, -1) and
(-8. – 7)?

Step-by-step explanation:

The equation of a line can be written in the form of y=mx +c, where m is the gradient and c is the y-intercept.

Using the gradient formula above,

gradient of line

Substitute m= ½ into the equation:

y= ½x +c

To find the value of c, substitute a pair of coordinates.

When x= 4, y= -1,

-1= 2 +c

c= -1 -2 (-2 on both sides)

c= -3

∴ The equation of the line is y= ½x -3.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175