Question

Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)

Can you please help?
the points (1,k) and (0,4) fall on a line with a slope of -9. What is the value of k?
If its not right im gonna report you

Answer 1

the value of K >>>>-5

Answer 2

k=-5

Explanation:

equation for slope

y2-y1

_____

x2-x1

4-k/0-1

4-k/-1

4-(-5)/-1

9/-1=-9