The point (-6, 4) lies on a straight line that has a gradient of -2. What is the equation of this line?

Given:

Point on straight line = (-6,4)

Gradient = -2

To find:

The equation of the line.

Solution:

Point-slope form: If a line passes through the point with slope m, then the equation of the line is

The line passes through the point (-6,4) with slope -2. So, the equation of the line is:

Adding 4 on both sides, we get

Therefore, the equation of the line is .

goog may have it for you

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value