Slope-Intercept Form Answers

Determine the x- and y- intercepts for the graph defined by the given equation.y = -8a.x-intercept is (0, -8) No y-interceptc.x-intercept is ( -8, 0) No y-interceptb.No x-intercepty-intercept is (0, -8) d.No x-intercepty-intercept is ( -8, 0)

Determine the x-intercept of the line whose equation is given: a. b. c. d. Please select the best answer from the choices provided

State the practical meaning of the slope and y-intercept for the situation described. The population, in millions, of a city t years after 1990 is given by. a. 3.1 million is the population of the city in 1991 and 3.17 million is the population in 1992. c. 3.1 million is the population of the city in 1990 and 0.07 million is the increase per year in the population. b. 3.1 million is the population of the city in 1990 and 0.07 million is the decrease per year in the population. d. 0.07 million is the population of the city in 1990 and 3.1 million is the increase per year in the population. Please select the best answer from the choices provided

A plane is on its approach to land on the runway. The jet’s height above the ground is given in feet as a function of the time in seconds. The following table tracks the plane as it lands: t (in seconds) h (in feet) 0 4000 5 3500 10 3000 15 2500 20 2000 25 1500 Determine where the graph crosses the h-axis. Then write the equation in slope-intercept form. a. (4000, 0); b. (0, 4000); c. (0, 4000); d. (100, 0); Please select the best answer from the choices provided

A plane is on its approach to land on the runway. The jet’s height above the ground is given in feet as a function of the time in seconds. The following table tracks the plane as it lands: t (in seconds) h (in feet) 0 4000 5 3500 10 3000 15 2500 20 2000 25 1500 Calculate the slope. Use the formula . What is the significance of the sign of the slope? a. The plane is losing altitude. b. The plane is gaining altitude. c. The plane is remaining at a constant height. d. The plane is losing altitude at a rate of 500 feet/second. Please select the best answer from the choices provided

Consider the following equations: Discuss the similarities and difference in the graphs of these equations. (Use a graphing calculator if needed.) a. Same slopes; different y-intercepts b. Same slopes; same y-intercepts c. Different slopes; same y-intercepts d. Different slopes; different y-intercepts Please select the best answer from the choices provided

Consider the following equations: Discuss the similarities and differences of the graphs of these equations. (Use a graphing calculator if you have one.) a. Same slopes; same y-intercepts b. Same slopes; different y-intercepts c. Different slopes; different y-intercepts d. Different slopes; same y-intercepts Please select the best answer from the choices provided

Determine the x-intercept of the line whose equation is given: a. b. c. d. Please select the best answer from the choices provided

State the practical meaning of the slope and y-intercept for the situation described.The cost, in dollars, of cellular phone service with Econo-phone is given by C = 0.18x + 14.55, where x is the number of minutes used in one month.a.0.18 signifies the cost per minute, and 14.55 signifies the monthly service charge.c.14.55 signifies the cost per minute, and 0.18 signifies the monthly service charge.b.0.18 signifies the hourly phone rent, and 14.55 signifies the cost of the hardware.d.14.55 signifies the total phone bill, and 0.18 signifies the number of minutes used.

A plane is on its approach to land on the runway. The jet’s height above the ground is given in feet as a function of the time in seconds. The following table tracks the plane as it lands: t (in seconds) h (in feet) 0 4000 5 3500 10 3000 15 2500 20 2000 25 1500 Is this function linear? If it is, what is the slope? Use the formula . a. No, this is not a linear function. b. Yes, this function is linear; the slope is 500 feet/second. c. Yes, this function is linear; the slope is 100 feet/second. d. Yes, this function is linear; the slope is -100 feet/second. Please select the best answer from the choices provided