Consider the quadratic function
f (x )= ax^2 + c , a ≠0.

If a > ​0, then f has a minimum that occurs at x = . This minimum value is​ .
If a < ​0, then f has a maximum that occurs at x=. This maximum value is​ .

Min: at x = 0, value = c

Max: at x = 0, value = c

Step-by-step explanation:

f(x) = ax² + c

Comparing to a(x - h)² + k,

h = 0, k = c

last option: rhombus or kite

step-by-step explanation:

a kite and rhombus have the same shape. as we don't have any specific formula for the calculation of area of kite. the diagonals are used to calculate the area of a kite or rhombus.

the formula for area of rhombus is given by:

here, d_1 is the first diagonal and d_2 is the second diagonal.

so,

last option is the correct answer ..

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

happy to

pls mark as brainliest