Answer: 0.6
Step-by-step explanation:
m = 6/10
m = 0.6
The correct answer is 934
Answer:

Step-by-step explanation:
The equation of a quadratic function in vertex form is given by:

Where (h,k) is the vertex.
It was given in the question that the vertex of the parabola is (-1,4).
When we substitute the vertex into the formula we get:

The parabola also passes through (4,19) hence it must satisfy its equation.



We divide both sides by 25 to get:

Hence the quadratic function is:

This is called difference of squares. It's like
a^2-b^2=(a-b)(a+b)
t^2-25=(t-5)(t+5)
Hope this helps :)