7. Superman is in level flight 6 miles above the ground. His flight plan takes him directly over and past Avon High School. How fast is he flying when the distance between him and AHS is exactly 10 miles
and this distance is increasing at the rate of 40 mph?

Match the terms to their definition. 1. coefficient a rectangular array made up of rows and columns 2. determinant the form ax + by = c of a linear equation, where a, b, and c are integers 3. matrix the determinant found when column 1 consists of the x-coefficients and column 2 consists of the y-coefficients of a linear system 4. determinant form the value of: (row 1, column 1)(row 2 column 2) - (row 1, column 2)(row 2, column 1) in a 2 by 2 matrix 5. system determinant the determinant found when column 1 consists of the x-coefficients and column 2 consists of the constants of a linear system 6. x-determinant the determinant found when column 1 consists of the constants and column 2 consists of the y-coefficients of a linear system 7. y-determinant