Answer:
She can make 2 batches.
Step-by-step explanation:
Since she has 4/5 and only needs 2/5, she can make two batches. (2/5 is half of 4/5)
Sorry this got to you super late. At least others looking for the answer can find it.
First lets distribute the 5x
5x^2 + 30x = -50
Lets divide every term by 5
x^2 + 6x = -10
To complete the square we have to half the b value, which in this case is 6. Then square it.
Half of 6 is 3, 3 squared is 9
Add that to both sides of the equation
x^2 + 6x + 9 = -1
Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment)
(x+3)^2 = -1
Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and
x = -3 + i
The correct answer to this problem would be -3. Based on the points you've provided on the graph, -3 would be the correct common difference. :)
