Which graph is the most appropriate to use to describe a quantity decreasing at a steady rate?
a.
On a coordinate plane, a line curves upwards and then decreases rapidly
c.
On a coordinate plane, a line has a negative slope.
b.
On a coordinate plane, a line alternates by increasing, staying steady, and decreasing.
d.
On a coordinate plane, a line curves down.
Please select the best answer from the choices provided