hello i need help with these statistic questions please

question 4:

a. The y-intercept is 4 and the slope is 0. (Type integers or decimals. Do not round.) b. The line is horizontal, because the slope is zero. c. Use the graphing tool to graph the line. Click to enlarge graph\fGiven below is a linear equation. y= - 8 a. Find the y-intercept and slope. b. Determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation. c. Use two points to graph the equation.a. The line slopes upward, because the slope is positive. b. The equation is y = 3.5x . (Type an expression using x as the variable. Use integers or decimals for any numbers in the expression. Simplify your answer. Do not round.) c. Use the graphing tool to graph the line. Click to enlarge graph\fGiven below is the y-intercept and slope, respectively, of a line. 0 and 3.5 a. Determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation. b. Find its equation. c. Use two points to graph the equation.a. Find the equation that expresses y in terms of x. y = 68.63 + 0.30)? (Type integers or decimals for any values in the expression. Do not include the S symbol in your answer. Do not round.) b. Determine bf, and b1. The value of ho is 63.53'. (Type an integer or a decimal. Do not include the $ symbol in your answer. Do not round} The value of b. is 0.30'. (Type an integer or a decimal. Do not include the $ symbol in your answer. Do not round} c. Construct a table for the x-yalues 50, 100, and 250. Miles Cost {5] x it so 3353' 100 9353' 250 143.63' (Simplify your answers. Type integers or decimals. Do not round .3 d. Draw the graph of the equation in part (a) by plotting the points from part (c) and connecting them with a line. Choose the correct graph below. 3-: i A 200 y a ZOO-m. \"an Cl 150 300 {l 150 300 El 150 300 9. Apply the graph from part (d) to estimate visually the cost of driving the car 150 miles. Then calculate that cost exactly by using the equation from part (3). Based on the graph1 between what two amounts will the oost fall? V $100 and $120 $00 and $100 $120 and $140 $140 and $160 Using the equation' the cost is $ 113.63'. (Simplify your answer. Type an integer ora decimal. Do not round.) During one month, the rate for renting a particular car model was $6141 per day plus 25 per mile. For a 141a)! rental, let x denote the number of miles driven and let 3; denote the total cost, in dollars. Complete parts (a) through (e) below. \fUse the given data set to answer parts (a) and (b). a. Find the regression equation for the data points. X 4 5 b. Graph the regression equation and the data points. y -3 0 -5 a. Find the regression equation for the data points. X (Round to two decimal places as needed.)