PLESE SOMEONE HELP ME I DIDNT STUDY FOR THIS QUIZ

-6 ;

ax² + bx + c ;

-1

Step-by-step explanation:

1)

Give thequadratic equation :

4x² - 6x - 5

The values of a, b, c are the Coefficient of x², x and the constant respectively

Therefore, the value of b is the Coefficient of x = - 6

2.)

Standard form of a quadratic equation is :

ax² + bx + c

a = Coefficient of x² ; b = Coefficient of x ; c is a constant

3.)

2x² - 4x + 7

Axis of symmetry :

-b / 2a

a = 2 ; b = - 4, c = 7

-b / 2a = - 4 / 2(2)

= - 4 / 4

= - 1

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step-by-step explanation: