The equation of the line of best fit of a scatter plot is y = _7x _ 2. what is the the y-intercept?
_7
_2
2
7

What is the value of the expression below? (81^2)^1/8

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.