# Pls help! will give brainlist!write a story that can describe the expression: 75x – 20

Pls help! will give brainlist!

write a story that can describe the expression:
75x - 20

## This Post Has 3 Comments

1. Expert says:

The length of what is left would be 1 1/2 feet long.
$Can some one me with this math problem$

2. Expert says:

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

$Use the parabola tool to graph the quadratic function f(x)=(x-5)^2+1 graph the parabola by first plo$

3. blueflu5120 says:

Hope it helps
$Pls help! will give brainlist! write a story that can describe the expression: 75x - 20$