What is the slope of the line going through the points (-3,-7.5) and (-2,-5)

2.5

Step-by-step explanation:

y2 - y1 = top

x2 - x1 = bottom

y2 = -5

y1 = -7.5

x2 = -2

x1 = -3

-5-(-7.5) = 2.5

-2-(-3) = 1

2.5 over 1 = 2.5

the answer is 3/5

step-by-step explanation:

first divide 24 divided by 8 because that is the least common multiple

then divide 40 by 8

then you will get 3/5.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this