Solve the following quadratic by completing the square.
f(x) = x2 + 2x – 12
x = [?] =)
Steps to Remember
1. Set the y-value equal to 0.
2. Subtract the constant term from both sides.
3. Add ()2 to both sides (to complete the square).
4. Factor (write as a perfect square).
5. Solve for x like normal.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

The data shown in the table below represents the weight, in pounds, of a little girl, recorded each year on her birthday. age (in years) weight (in pounds) 2 32 6 47 7 51 4 40 5 43 3 38 8 60 1 23 part a: create a scatter plot to represent the data shown above. sketch the line of best fit. label at least three specific points on the graph that the line passes through. also include the correct labels on the x-axis and y-axis. part b: algebraically write the equation of the best fit line in slope-intercept form. include all of your calculations in your final answer. part c: use the equation for the line of best fit to approximate the weight of the little girl at an age of 14 years old.

Which table shows a proportional relationship between miles traveled and gas used?