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:
201.06
Step-by-step explanation:
Area of a circle = pi x r^2
= 201.06
Answer:
-147
Step-by-step explanation:
(21) • (-7)
Since it’s a positive times a negative, the answer will be negative
-147
Answer:
Answer: 14
Terms: 3
Coefficient: 2
Step-by-step explanation:
15 + 2 x 1.5 - 4=14
2 is the number beside x
15, 4, and 2x are the terms
