The final slope would be:
-3/4
EXPLANATION
rise over run.
(Rise is the y value)
From -2 to -17 is -15
From 4 to 24 is 20
Therefore the slops is -15/20
Rewrite it in the form a^2 - b^2, where a = x and b = 5
x^2 - 5^2
Use the Difference of Squares: a^2 - b^2 = (a + b)(a - b)
<u>= (x + 5)(x - 5)</u>
1 cup = 128 grams
X cups = 96 grams
Cross multiply
128X = 1*96
X=96/128 cups = 6/8 = 3/4 cups.
If she has already added 1/2 cups, then she needs to add (3/4-1/2)=1/4 cup more sugar.
Also please remind her to do the calculations before adding ingredients to avoid ruining a recipe.
