Answer:
<h2>7x</h2>
Step-by-step explanation:
Vertex aka max or min point is found by -b/2a in form
f(x)=ax^2+bx+c
f(x)=-1x^2+8x+20
vertex x value is -8/(2)(-1)=-8/-2=4
input back to find y value
f(4)=-(4^2)+8*4+20
f(4)=-16+32+20
f(4)=36
max (since the graph opens down) is (4,36)
axis of symmetry is the x coordinate
max is (4,36)
axis of symmetrry is x=4
Answer:
566788998888888vbfkkvvhk n.v c
Answer:
2 1/4
Step-by-step explanation:
- 5 1/4- [-7 1/2]
Get a common denominator of 4
- 5 1/4- [-7 1/2*2/2]
- 5 1/4- [-7 2/4]
We know subtracting a negative is adding
- 5 1/4 + [7 2/4]
Rewriting
7 2/4 - 5 1/4
Subtract the whole numbers
7-5 =2
Subtract the fractions
2/4 -1/4 = 1/4
2 1/4
