PRACTICE TEST. help me please here are half of the questions :). 2. every 40 minutes, sasha can mow 1/4 of an acre. What is the unit rate of the proportional relationship in acres per HOUR. | 3. determine the slope of the line that goes through (16,9) and (6,-5) | determine the slope of the line that goes through (-11,2) (-11,20) | 5. use the equation to answer following questions. y = -3x + 1 what is the y-coordinate when x = 2 , x = 0 . what is the slope of the line? what is the y-intercept of the line? what does the graph look like? | 6. use the equation to answer the following questions y = 1/4x - 5 what is the y-coordinate when x = 4, x = 0. what is the slope of the line? what is the y-intercept of the line? what does the graph look like? | 7. use the graph to answer the questions. what is the slope? what is the y-intercept? what is the equation of the line?