Which of the following equations represents a line that is perpendicular to
y = -4x+9 and passes through the point, (4, 5)?
a. y- x+5 b. y- *x+6
c. y = x+4 d. y --4x+4

For this case we have that if two lines are perpendicular, then the product of their slopes is -1.

If we have the following equation of the line:

The slope is

Then yes:

The equation of the new line will be:

We substitute the point to find "b":

Finally, the equation is:

answer: 193

explanation:

200-7 = 193