Evaluate y=3x for x=2

y = 6

Step-by-step explanation:

When a question asks you to evaluate y = ___ for x = n (n is any real number), it is asking you to find what y is when x = n.

For this question, we have the function y = 3x. We are trying to find that y is when x = 2. To do this, we can plug in 2 for x and solve for y.

y = 3(2)

Simplify

y = 6

The answer is y = 6.

I hope this helps. :)

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2