What is the equation of the line in standard form?
x−2y=4
x + 2y = 4
2x−y=2
2x + y = 2

perpendicular lines have slopes that multiply to get -1

y=mx+b is the slope intercept equation

m=slope

so get into y=mx+b form

-x+2y=4

solve for y

add x both sides

2y=x+4

divide by 2 both sides

y=(1/2)x+2

the slope is 1/2

perppendicular line slope multiplies to -1

1/2 times what=-1

times 2/1 both sides

what=-2/1=-2

y=-2x+b

find b

we are given a point is (-2,1)

when x=-2, y=1

1=-2(-2)+b

1=4+b

minus 3 both sides

-3=b

so the equation is

y=-2x-3

your teacher might want it in standard form (ax+by=c) so

add 2x both sides

2x+y=-3 is an equation

so y=-2x-3 is correct (slope intercept form)

2x+y=-3 is also correct (standard form)

Step-by-step explanation:

the truth is 2x - y = 2

Step-by-step explanation:

me take test... lol. but seriously th

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation: