Determine if the following represent a liner function or exponential function

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

The reflexive property of congruence lets you say that ∠pqr ≅