Find an equation of the line graphed below. Write your answer in the slope-intercept form y = max + b. =k W ks W0 ?F P 1 2343 Year Price Index 100.2 122.8 9 150.8 12 188. 1 15 204.5 18 221.8 21 247.6 24 269.3 27 290 30 314.7 A scatter plot for the data follows. 300 275- 250 225- 200- 175- 150 125 100 75 3 6 9 12 15 18 21 24 27 30 Q Use the above scatter plot to decide whether a linear model fits the data well. A linear model does not fit the data well. O A linear model fits the data well. Let C(t) be the price index for a medical supplies for t years since 1980. A linear model for the data is C'(t) = . Use three decimals in your answer. Estimate the price index in 2014. Use one decimal in your answer. Use the model to predict the vear in which the price index will be 321.3Solve the equation: 42 = -72 -11 Solution: X = O One solution: -1 No solution O Infinite number of solutions y = 4x Solve the system of equations by graphing: ly = -7x - 11 Graph will "snap to" every 1 points 12- 11 10- 9- -12-11 -10-98-76-5-4-3-2 -1 1 2 3 4 5 6 7 8 9 10 11 12 12- Clear All Draw: How many solutions does this system have? If the answer is 1 solution, input the ordered pair where the two lines intersect. O One solution: (-1,-4) No solution O Infinite number of solutions