Answer:
y = (x+3)^2 -1
Step-by-step explanation:
The vertex form of the equation is
y = a(x-h)^2 +k where (h,k) is the vertex
The vertex is (-3,-1)
y = a(x- -3)^2 -1
y = a(x+3)^2 -1
Pick another point (-2,0) and substitute it into the equation
0 = a(-2+3)^2 -1 to find a
0 =a(1)^2 -1
0 = a-1
1 = a
y = (x+3)^2 -1
Answer:
.
It means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
Step-by-step explanation:
Given:
The function relating number of 9 inch tiles required and area to cover is:
Now, plug in 400 for 
to evaluate 
.
Therefore, Don required 673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
Answer:
0.6302494097
Step-by-step explanation:
Multiply 0.95, 9 times. Not 0.95×9 though.
Scatter plots<span> are similar to line graphs in that they use horizontal and vertical axes to </span>plot<span> data points. However, they </span>have<span> a very specific purpose. </span>Scatter plots<span> show how much one variable is affected by another. The relationship between two variables is called their </span>correlation<span> .</span>
