ECON 102 Quiz: ECON 102 UW Madison Quiz0withSolutionsSummer2017
Document Summary
Quiz #0 with answers: (1 point) you are given the following two points (x, y) = (10, 20) and (-5, 10). Slope of line = (change in y)/(change in x) = (20 10)/(10 (-5)) = 10/15 = 2/3. General form of equation in y-intercept form: y = mx + b. Use one of the known points to find the value of "b": Y = (2/3)x + (40/3) or y = (2/3)x + 13. 3: you are given the following two equations that describe two linear lines: Equation 2: y = 20 + 6x: (1 point) at what (x, y) do these two lines intersect with one another. To find where these two lines intersect we need to set the two equations equal to one another: When x = 10, then y = 100 2x = 100 2(10) = 80 or y = 20 + 6x = 20 + 6(10) = 80.
