Question 3
State the value of the discriminant of 5x2 + 9x = 3.
a) 21
b) 12
c) 141
d) 5

D = 141

Step-by-step explanation:

The given quadratic equation is

.

It is required to find the value of the discriminant. The value of discriminant  of any quadratic equation is given by :

Here, a = 5, b = 9 and c = -3

On plugging all the values, we get :

So, the value of discriminant for y is 141.

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

m∠a is 90°

m∠b is 40°