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

k=-5

Step-by-step explanation:

equation for slope

y2-y1

x2-x1

4-k/0-1

4-k/-1

4-(-5)/-1

9/-1=-9

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation:

i am thinking c. sorry if im wrong .

step-by-step explanation: