Question

Write the equation of a line with a slope of –1 and a y-intercept of –6.

Answer 1

y = –x – 6
y = –6x – 1
–x + y = –6
–x – y = –6

are the answer choices

Answer 2

Slope is -1 and y intercept means when x=0, then y =-6 , second co-ordinate would be the x intercept where y=0 , then x would be some value.

Co-ordinates are (0,-6) and (x,0). Slope = (y2-y1)/(x1-x2) = (0+6)/(0-x) =-1 So. x = 6 when y =0

So option c is correct -x+y=-6 as it holds good for both (0,-6) and (6,0)

Answer 3

Thank you, that makes sense

Answer 4

can you help me with another? @niksbhalla14mar