1. (a) What is the difference between a relation and a function?
(b) How can you determine if a relation is a one-to-one function? Give two reasons

Function h is defined by h(x) = 3 x 2 - 7 x – 5. Find h(x - 2).

Functions f and g are defined by f(x) = - 7 x - 5 and g(x) = 10 x – 12. find (f + g)(x)
In (9) above find f(1)/g(2).

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t