Problema Solution
the admissions office of a college wants to determine whether there is a relationship between IQ scores (x) and grade-point averages (y) after the first year of school. an equation that models the data obtained by the admissions office is y=0.068x-4.753.
estimate the values of x that predict a grade-point average of at least 3.0
Answer provided by our tutors
y=0.068x-4.753
we need to find x such that y >= 3.0
by solving the inequality
0.068x-4.753 >= 3.0
we find
x >= 114
click here to see the step by step solution of the inequality
the values of the IQ that predict a grade-point average of at least 3.0 are bigger or equal to 114.