Can someone show me where i went wrong in the following use an appropriate local linear approximation to estimate the value of the given quantity. cos(31*)

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?