business math macroeconomics

Write the equation of the line through the indicated point with the indicated slope. Write the final answer in the form y = mx + b. m = -4; (2, -1) The equation of the line is (Type your answer in slope-intercept form.)Find the slope of the graph of the equation. 7x + 9y = 63 Slope = (Enter a fully reduced fraction.)A farmer buys a new tractor for $156,000 and assumes that it will have a trade-in value of $83,000 after 10 years. The farmer uses a constant rate of depreciation to determine the annual value of the tractor. (A) Find a linear model for the depreciated value V of the tractor t years after it was purchased. v=0 (Type your answer in slope-intercept form.)The manager of a restaurant found that the cost to produce 200 cups of coffee is $65.00, while the cost to produce 250 cups is $77.50. Assume the relationship between the cost y to produce x cups of coffee is linear. a. Write a linear equation that expresses the cost, y, in terms of the number of cups of coffee, x. b. How many cups of coffee are produced if the cost of production is $137.50? a. y= (Use integers or decimals for any numbers in the expression.)(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. (-5, -3) and (2, - 9) (A) Find the slope of the line that passes through the given points. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. m= (Type an integer or a simplified fraction.) O B. The slope is not defined