The graph of y = ax 2 + bx + c is shown below. determine the solution set of 0 = ax 2 + bx + c.

1. {0,4}

2. {4}

3. 0

the solution set of the quadratic equation is

Step-by-step explanation :

we know that

The zero's of a quadratic function are the values of x when the value of the function is equal to zero

so

In this problem observing the graph

The zero's of the function are the points and

therefore

the solution set of the quadratic equation is

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

3

step-by-step explanation: