Y = 2x + 3
Would be the answer with 2 being the slope and 3 being the y-intercept
"Exponential Decay" is the type of equation shown in the question
Hope this helps!
So, 4 quarts of 10% antifreeze consists of .1 * 4 = .4 quarts of antifreeze.
x quarts of pure antifreeze consists of x quarts of antifreeze.
Mixing them together, the proportion of the solution that is antifreeze is given by
(.4 + q)/(4 + q).
We want to solve for a solution consisting of 50% antifreeze,
(.4 + q)/(4 + q) = .5 -> q = 3.2.
So, 3.2 quarts of pure antifreeze is required.
Answer: 3x
Explanation:
x + 9 = 4x - 4 • 2
x + 9 = 4x - 8
9 = 3x - 8 (subtract x from both side)
0 = 3x - 17 (subtract -9 from both side)
And the form ax is 3x