Mrs. Ivy is grading math homework papers. For a certain problem, the correct answer equals −0.5. Choose all of the students that give a correct answer. Student 1: 1 −2 Student 2: − 1 2 Student 3: −1 2 Student 4: −1 −2

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

If there are 3.281 feet in 1 meter, how many inches are in one centimeter