1. you have the following equation of the parabola in vertex form:
where h is the x-coordinate of the vextex and k is the y-coordinate of the vextex.
2. you know that the vertex of this parabola is at (-2, 5), then, susbtitute this point into the equation. then, you obtain:
3. therefore, the answer is the option c.
it now cost $320
have a good day
given that for the new lenses which mozart lenses inc. introduced is 246 out of 800
i.e. sample proportion = no of persons who said would purchase/total people surveyed
it can be estimated that since this is a random sample, this will give an estimate for the proportion of full lenses users for the year
total people who purchase eyeglasses in a year = 1700000
out of those, persons expected to purchsae new lenses =
annual sales potential for new lenses = 522,750
the answer is b