Answer:
Vertex form of a quadratic equation is y=a(x-h)2+k, where (h,k) is the vertex of the parabola
The vertex of a parabola is the point at the top or bottom of the parabola
Step-by-step explanation:
Different textbooks have different interpretations of the reference "standard form" of a quadratic function. Some say f (x) = ax2 + bx + c is "standard form", while others say that f (x) = a(x - h)2 + k is "standard form". To avoid confusion, this site will not refer to either as "standard form", but will reference f (x) = a(x - h)2 + k as "vertex form" and will reference f(x) = ax2 + bx + c by its full statement.
Answer:
45%
Step-by-step explanation:
225 of 500 can be written as:
225/500
To find percentage, we need to find an equivalent number with denominator 100. Multiply both numerator & denominator by 100
225/500 × 100/100
= (225 × 100/500) ×
1/100
=
45/100
Therefore, the answer is 45%
Hope this helps :)
Answer:
y = 20
Step-by-step explanation:
<h3>i) move 9 to the right-hand side and change its sign</h3>
<h3>ii) calculate the difference</h3>
<h3>iii) change the signs on both sides of the equation</h3>
<h3>iv) square both sides of the equation</h3>
<h3>v) move -4 to the right-hand side and change its sign</h3>
<h3>vi) add the numbers</h3>
Line them up by the decimal point
Answer:
x-intercepts: -2; 1; 5
Average rate of change: 1.8
Step-by-step explanation:
<u>x- intercepts as per graph are:</u>
<u>Average rate of change over the interval (-1, 4) is:</u>
- Δy/Δx = (y(4) - y(-1))/(4 - (-1)) = (3 - (-6))/5 = 9/5 = 1.8
