2. The changing speed of a car is modeled by the function S(t) =8t + 55, where t is time in seconds. Interpret the model. (multiple choice)
a. The car has an initial speed of 8 units and is speeding up by 55 units per second.
b. The car has an initial speed of 0 units and is speeding up to a speed of 55 units by 8
units per second.
c. The car has an initial speed of 55 units and is speeding up by 8 units per second.
d. The car has an initial speed of 55 units and is slowing down by 8 units per second.

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Fiona has to plot a histogram of the given data