- Vertex/General Form: y = a(x - h)^2 + k, with (h,k) as the vertex
- (x + y)^2 = x^2 + 2xy + y^2
- Standard Form: y = ax^2 + bx + c
So before I put the equation into standard form, I'm first going to be putting it into vertex form. Since the vertex appears to be (-1,7), plug that into the vertex form formula:
Next, we need to solve for a. Looking at this graph, another point that is in this line is the y-intercept (0,5). Plug (0,5) into the x and y placeholders and solve for a as such:
Now we know that <u>our vertex form equation is y = -2(x + 1)^2 + 7.</u>
However, we need to convert this into standard form still, and we can do it as such:
Firstly, solve the exponent: 
Next, foil -2(x^2+2x+1): 
Next, combine like terms and <u>your final answer will be: 
</u>
Answer:
36
Step-by-step explanation:
so 50% of 120 is just half of it. so that would be 60. Then 20% of 120 is 24 so subtract that from 60 and you get 36.
Similar triangles have proportional corresponding sides and congruent corresponding angles.
For similar triangles we write
ΔGHI ~ ΔJKL
In these similarity expressions, the order of the vertices is meaningful. Here it tells us that G and J are corresponding vertices, as are H and K, as well as I and L. So ∠G≅∠J, ∠H≅∠K and ∠I≅∠L.
Answer: c
Answer:
r = 3cm
h = 20cm
SA = 433.32cm^3
Step-by-step explanation:
If you use 3.14 for pi you will get 433.32.
Plz mark brainliest if this helped!!!
Answer:
y = -3/2x -5
Step-by-step explanation:
We want slope intercept form which is y = mx+b
Y+2=-3/2(x+2)
Distribute
y+2 = -3/2x -3
Subtract 2 from each side
y+2-2 = -3/2x -3-2
y = -3/2x -5
