Find the gradients of lines a and b

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

What is the difference between the equations of a vertical and a horizontal line?

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?