Answer:
c is showing the proper distributive property
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Complete the squares</u>
<u />
We now compare to the equation 
where 
is the vertex of the parabola. Hence, the vertex of the parabola is .
Answer:
24 cm
Step-by-step explanation:
Each side of a square represents 1cm
The rectangle's length touches 5 squares, and breadth touches 7 squares.
Perimetre of rectangle: 2(l+b)
2(5+7)
2×12
or 24 cm
Answer:
-4
Step-by-step explanation:
-3-9 +8
-12 + 8
= -4
Answer:
f(x) = -(x-3)^2 + 4
Step-by-step explanation:
(h; k) are the coordinates of the vertex.
On the graph are (3, 4), therefore we have:
f(x) = a(x-3)^2 + 4
We have the x- intercept (1,0) -> x=1; y=0.
Substitute them into the equation:
0 = a(1 - 3)^2 + 4
0 = a(-2)^2 + 4
4a + 4 = 0 | -4
4a = -4 |-4
a = -1
So, we have the answer:
f(x) = -(x-3)^2 + 4
