Help me on this Please
1 answer:
You might be interested in
Distance formula:
√(x1-x2)^2+(y1-y2)^2
√(x1-x2)^2+(y1-y2)^2
Answer:
see explanation
Step-by-step explanation:
The equation of a parabola in vertex form is
y = (x - h)² + k (h, k) are the coordinates of the vertex
Given y = x² + 7x - 5
To express in vertex form use the method of completing the square
add/subtract ( half the coefficient of the x- term )²
y = x² + 2( )x +
-
- 5
y = (x + )² -
-
y = (x + )² -
Hence
a = and b = -