Open Middle®
Directions: Using the integers -9 to 9, at most one time each, place an integer in each box to create a right triangle on the coordinate plane.
Hint
Get creative with the slopes (it’s okay to use unsimplified fractions!). Also, a negative value in the numerator OR denominator of a fraction will create a negative, decreasing slope. A negative value in the numerator AND denominator makes the fraction positive (negative/negative=positive).
Answer
Many answers. One answer is y=2/1x+3, y= -4/8x+5, y= -6/4x+9
Source: Tracy Conte