The vertex-form of a quadratic equation is

, where (h, k) is the vertex of the parabola.
To complete the square of a quadratic expression in standard form, we write the coefficient of x as 2*b, then add and subtract

.


so b=4, now add and subtract

.


Answer: 83,538
mimimnghvghghb
Answer:
(-6, 1)
Step-by-step explanation:
Answer:
The x-intercept is at -8 and the y-intercept is at -5.
Step-by-step explanation:
When you simplify 5x + 8y = 40 into y = mx + b form, you get y = -5/8x - 5.