2. Determine whether each set is well-defined. a) {x\ x is a real number}
b) {x| x is a good worker}
c) {x| x is a counting number less than 2}
d) {1, -3, 5, -7, 9, -11, ...}

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Find the missing variable for a parallelogram: a = latex: 28in^2 28 i n 2 h = b = 6.3 in (1in=2.54cm)