Question

Write the equation of the line that passes through (-1, 4) with a slope of -1 in standard form.

A) -x + 4y = -1
B) x - 4y = -1
C) x + y = 3
D) x - y = -3

Answer 1

first of all, c is the answer
I'll write the step down

Answer 2

Thank you! And yes, please show me how to do it. :)

Answer 3

y=mx+b
slope: -1
y=-x+b
coordinate: (-1,4)
4=-1(-1)+b
4=1+b
b=3
y=-x+3
y+x=3
x+y=3 (C)

Answer 4

Can you explain what the mx + b stands for? Like where does slope go and all the others go?

Answer 5

y=mx+b is a slope intercept form.
m stands for slope and b stands for y-intercept

Answer 6

Oh ok thanks!!! :)

Answer 7

sure