Build the equation that combines the functions b=3r+1 and y=2b^2 .(2 points) y= r2+ r+

Answer 1

Let's start by substituting the value of b from the first equation into the second equation:

y = 2(3r + 1)^2

Now let's expand the equation:

y = 2(9r^2 + 6r + 1)

y = 18r^2 + 12r + 2

Therefore, the combined equation is:

y = 18r^2 + 12r + 2