The Parks and Recreation office of Nappanee, Indiana wants to plant new trees in their city park. To provide enough shade, a lan
dscaper recommends planting 3 trees per square unit. Currently, they have planted 10 square units with trees. 1. After two more weeks of work, they take stock and notice that they have planted a total of 111 trees. How many square units have they planted?
At last the project is finished.
2.The Nappanee Parks and Recreation office happily reports to the newspaper that they planted a total of 135 trees. How much additional park area did they plant with trees?
1) First, find the slope of the line. Use the slope formula to find the slope. Substitute the x and y values of the given points into the formula and solve:
So, the slope is .
2) Use the point-slope formula to write the equation of the line in point-slope form. Substitute values for , , and into the formula.
Since represents the slope, substitute in its place. Since and represent the x and y values of one point on the line, choose any one of the given points (it doesn't matter which one) and substitute the x and y values of it into the formula. (I chose (1,-4), as seen below). This gives the equation of the line in point-slope form.