When multiplying numbers with same base but different powers, the result is that base and the powers added together. Therefore: 8.76 x 10^6 can be written as: 8.76 x 10^2 x 10^4
Now, comparing the two numbers, we will find that 8.76 x 10^6 is 10^4 times greater than 8.76 x 10^2
a. The vertex is at (2,1) which is the highest point of the parabola. This applies to any parabola where it forms a hill like this.
b. The line of symmetry is x = 2. It is the vertical line through the vertex. The line of symmetry cuts the parabola into two equal halves (one half mirrors over the line to get the other half).
c. The x intercepts are x = 1 and x = 3, which is where the parabola crosses the x axis. More specifically the locations are (1,0) and (3,0).
d. The y intercept is where the graph crosses the vertical y axis. The y intercept is -3, so its location is (0,-3). A function can only have one y intercept.