Line w is perpendicular to the line y = −x − 5 and passes through the point (−2, 4). what is the y-intercept of line w?

select one:
a. 3
b. 4
c. 5
d. 6

The slope of a line perpendicular to another is the negative reciprocal of the original.  The negative reciprocal of -1 is 1.  The equation will read:

y=x+b

To solve for the y-intercept (b), plug in the given values of x and y:

4=-2+b

*Add 2 to both sides*

D. 6

Hope this helps!!

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !