The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b? .

If you factor out the equation you get

(X-10)(x+9)

So the solution is -9 and 10

And you add together you get 1

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

x=half

step-by-step explanation: