What is the slope of the line that contains the points (-1,9) and (5,21)

a) -1/2
b) 1/2
c) -2
d) 2

Hundred and tens tables to make 430 in five different ways

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Which unit rate is the lowest price per ounce? (5 points) choice a: 6 ounces of chocolate chips for $2.49 choice b: 8 ounces of chocolate chips for $3.32