The graph of a quadratic equation is a U-shaped curved called parabola. It is because the parabola makes very easy to find the axis of symmetry to plot selected points and finding the roots and vertex.
Good luck :)
The answer is a. number of boys < 89.
Answer:
B - 18
Step-by-step explanation:
149 total minutes minus 5 for the introductions leaves 144.
144/5=18
Answer:
Vertex is (-8, 4) not one of the answers offered!
Step-by-step explanation:
Factor -1/8 out of the first two terms. Leave a space inside parentheses in which to add a number.

Complete the square by squaring half the coefficient of <em>x </em>and adding it in the space.

Add 64 in the space you made, then compensate for that at the end of the expression by <u>subtracting</u> 

The x-coordinate of the vertex is the <u>opposite</u> of +8, the number inside the parentheses. The y-coordinate of the vertex is the number at the end of the expression.
V(-8, 4)
Answer:
3x + 5y = 11 -> y = -3/5x + 11/5
9x + 15y = 33 -> y = -3/5x + 11/5