How can you find a slope of a quadratic equation like 4.5x^2-3x+2?

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?

The box plots show the distributions of the numbers of words per line in an essay printed in two different fonts.which measure of center would be best to compare the data sets? the median is the best measure because both distributions are left-skewed.the mean is the best measure because both distributions are left-skewed.the median is the best measure because both distributions are symmetric.the mean is the best measure because both distributions are symmetric