Which line is perpendicular to a line that has a slope of 1/2?

Line having the slope = -2

Step-by-step explanation:

If a line is given with the slope then we have to find a line which is perpendicular to this line.

Let the slope of other line is and this line is perpendicular to the first line.

Then

So

So the line which has slope = -2 will be perpendicular to the line having slope =

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct