Algebra final riley

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Across
  1. 1. the set of all possible input values
  2. 4. a second-order polynomial equation in a single variable x ax2+bx+c=0
  3. 8. an imaginary straight line that divides a shape into two identical parts
  4. 9. the set of all possible output values
  5. 11. an equation where the highest power of any variable is 1, and its graph is a straight line
  6. 14. the study of mathematical structures that are countable or otherwise distinct and separable
  7. 15. a point where two or more curves, lines, or line segments meet or intersect
Down
  1. 2. when any value substituted for the variable makes the equation true
  2. 3. every real number can be substituted into the inequality to make a true statement
  3. 5. a line that continually approaches a given curve but does not meet it at any finite distance
  4. 6. a real-valued function whose graph does not have any breaks or holes
  5. 7. where a line crosses the x-axis
  6. 10. there is no value for the variable that makes the equation true
  7. 12. an equation with exponents where the exponent (or) a part of the exponent is a variable
  8. 13. The y-intercept is the point where the graph intersects the y-axis