Name________________________ No.______ Geometry 13-3 1) Use slopes to show ΔABC is a right triangle given A(1,4), B(-1,-3), and C(6,-5) Name_______________________ No.______ Geometry 13-8 1) Using only one variable, draw an equilateral triangle on the coordinate plane and label all vertices. Name_________________________ No.______ Geometry 13-3 2) Given A(2, -3), B(4, 7) and C(-1, 3). What is the slope of the altitude from vertex B of ΔABC ? Name_________________________ No._____ Geometry 13-8 2) Supply the missing coordinates for this parallelogram without introducing any new variables. Name_________________________ No.______ Geometry 13-3 3) Given N(-1, -5), O(0,0), P(3,2) and Q(8,1), show that NOPQ is an isosceles trapezoid. Name_________________________ No._____ Geometry 13-9 1) Write a coordinate proof to show that the diagonals of an isosceles trapezoid are congruent. Name_______________________ No.______ Geometry 13-8 1) Using only one variable, draw an equilateral triangle on the coordinate plane and label all vertices. Name________________________ No.______ Geometry 13-3 1) Use slopes to show ΔABC is a right triangle given A(1,4), B(-1,-3), and C(6,-5) Name_______________________ No.______ Geometry 13-8 2) Supply the missing coordinates for this parallelogram without introducing any new variables. Name________________________ No.______ Geometry 13-3 2) Given A(2, -3), B(4, 7) and C(-1, 3). What is the slope of the altitude from vertex B of ΔABC ? Name_______________________ No.______ Geometry 13-9 1) Write a coordinate proof to show that the diagonals of an isosceles trapezoid are congruent. Name________________________ No.______ Geometry 13-3 3) Given N(-1, -5), O(0,0), P(3,2) and Q(8,1), show that NOPQ is an isosceles trapezoid. Name_______________________ No.______ Geometry 13-1 1) Show that the triangle with vertices A(-3,4) B(3, 1) and C(0, -2) is isosceles. Name_______________________ No.______ Geometry 13-Summary 1) What is the distance formula? Name_______________________ No.______ Geometry 13-1 2 2) Sketch the graph of ( x + 3) + y 2 = 49 Name_______________________ No.______ Geometry 13-Summary 2) What is the midpoint formula? Name_______________________ No.______ Geometry 13-1 3) Write the equation of the circle with center C(-4, -7) and radius = 5. Name_______________________ No.______ Geometry 13-Summary 3) What is the equation of a circle? Name_______________________ No.______ Geometry 13-Summary 1) What is the distance formula? Name_______________________ No.______ Geometry 13-1 1) Show that the triangle with vertices A(-3,4) B(3, 1) and C(0, -2) is isosceles. Name_______________________ No.______ Geometry 13-Summary 2) What is the midpoint formula? Name_______________________ No.______ Geometry 13-1 2 2) Sketch the graph of ( x + 3) + y 2 = 49 Name_______________________ No.______ Geometry 13-Summary 3) What is the equation of a circle? Name_______________________ No.______ Geometry 13-1 3) Write the equation of the circle with center C(-4, -7) and radius = 5. Name_______________________ No.______ Geometry 13-2 1) Find the slope of the line passing through (7, 4) and (−2,8) Name_______________________ No.______ Geometry 13-Summary 4) How do you find the slope of a line? 5) What is the equation of a line? Name_______________________ No.______ Geometry 13-2 2) Find the missing coordinate when a line has a slope of − 34 and passes through the points (−5, 7) and ( x, −2) Name_______________________ No.______ Geometry 13-Summary 6) How do you know when 2 lines are: a. parallel? b. perpendicular? Name_______________________ No.______ Geometry 13-2 3) Find the slope of this line Name_______________________ No.______ Geometry 13-Summary 7) To prove theorems using coordinate geometry, proceed as follows: a. Place x − and y − axes in a ___________ position with respect to a figure. b. Use known properties to assign _________ to points of the figure. c. Use the ___________ formula, _________ formula, and the __________ properties of parallel and perpendicular lines to prove theorems. Name_______________________ No.______ Geometry 13-Summary 4) How do you find the slope of a line? Name_______________________ No.______ Geometry 13-2 1) Find the slope of the line passing through (7, 4) and (−2,8) 5) What is the equation of a line? Name_______________________ No.______ Geometry 13-Summary 6) How do you know when 2 lines are: a. parallel? Name_______________________ No.______ Geometry 13-2 2) Find the missing coordinate when a line has a slope of − 34 and passes through the points (−5, 7) and ( x, −2) b. perpendicular? Name_______________________ No.______ Geometry 13-Summary 7) To prove theorems using coordinate geometry, proceed as follows: a. Place x − and y − axes in a ___________ position with respect to a figure. b. Use known properties to assign _________ to points of the figure. c. Use the ___________ formula, _________ formula, and the __________ properties of parallel and perpendicular lines to prove theorems. Name_______________________ No.______ Geometry 13-2 3) Find the slope of this line Name________________________ No.______ Algebra Review 13: Equations of a Circle 2 2 1) Graph ( x + 3) + ( y − 2 ) = 25 Name________________________ No.______ Algebra Review 13: Completing the Square 1) Solve by completing the square: x2 − 4 x − 2 = 0 Name________________________ No.______ Algebra Review 13: Equations of a Circle 2) Write the equations of a circle with center at ( 4, −5 ) having a radius of 3. Name________________________ No.______ Algebra Review 13: Completing the Square 2) Solve by completing the square: x 2 − 10 x = 23 Name________________________ No.______ Algebra Review 13: Equations of a Circle 3) Identify the center and radius of the 2 following circle: x 2 + ( y − 7 ) = 1 Name________________________ No.______ Algebra Review 13: Completing the Square 3) Solve by completing the square: r 2 + 14r − 10 = 5 Name________________________ No.______ Algebra Review 13: Completing the Square 1) Solve by completing the square: x2 − 4 x − 2 = 0 Name________________________ No.______ Algebra Review 13: Equations of a Circle 2 2 1) Graph ( x + 3) + ( y − 2 ) = 25 Name________________________ No.______ Algebra Review 13: Completing the Square 2) Solve by completing the square: x 2 − 10 x = 23 Name________________________ No.______ Algebra Review 13: Equations of a Circle 2) Write the equations of a circle with center at ( 4, −5 ) having a radius of 3. Name________________________ No.______ Algebra Review 13: Completing the Square 3) Solve by completing the square: r 2 + 14r − 10 = 5 Name________________________ No.______ Algebra Review 13: Equations of a Circle 3) Identify the center and radius of the 2 following circle: x 2 + ( y − 7 ) = 1