Answer:
1) 1st graph below x-intercepts S={-7,-1}
2) Opens Down <u>Vertex</u>: (-2,4) <u>Axis of Symmetry </u> <u>x-intercept</u>
B <u>Domain:</u>
<u>Range</u>
C This function increases from And decreases from
Step-by-step explanation:
1) The vertex of the parabola is found when we rewrite the common formula:
Into this way:
The Vertex is found by:
That's why we could rewrite the trinomial as this:
Give the equation of the parabola's axis of symmetry, this is given by tracing a vertical line through the parabola vertex.
The intercepts are the roots/zeros:
<u>Domain:</u>
Since the function has no restrictions therefore it is continuous and defined for any value of x ∈ Real Set
<u>Range</u>
As the minimum point -9 is lowest y-coordinate the Range includes this value up to infinite values
(First Graph)
2)
As the parameter a <0 then the graph opens down.
<u>Vertex:</u>
<u>Axis of Symmetry</u>
<u>x-intercept</u>
<u>y-intercept</u>
c=0 then (0,0).
B <u>Domain:</u>
Similarly, since the function has no restrictions therefore it is continuous it is defined for any value of x ∈ Real Set
<u>Range</u>
C
This function increases from Or we can represent this interval like this:
And decreases from
Answer:
Step-by-step explanation:
2(x+2) = 10
divide by 2 each side
x+2 = 5
subtract 2 on each side
x = 3
12 jasjjsisiaiaiiiiiiiiiiii it’s wrong oops
Answer:
b must equal 7 and a second solution to the system must be located at (2, 5).
Step-by-step explanation:
Rearranging the first equation:
y = (x - 3)^2 + 4
From this we see that the vertex is at the point (3,4).
So one solution of equation 2 is (3 ,4).
Substituting in equation 2:
4 = -3 + b
b = 7.
So equation 2 is y = - x + 7.
Now we check if (2, 5) is on this line:
5 = -2 + 7 = 5 , therefore (2, 5) is on this line.
Verifying if (2, 5) is also on y = (x - 3)^2 + 4:
5 = (2 - 3)^2 + 4 = 1 + 4 = 5
- so it is. and a second solution to the system is (2, 5).
Answer:
1 2/3
Step-by-step explanation:
1 and 2/3