1. check all solutions of the equation: 5x(x - 2) = 0
a. 0
b. 2
c. -2
d. 5
2. factor by grouping: xy - 2y + 2x - 4
a. (x + 4)(y + 2)
b. (x - 2)(y + 2)
c. (x + y)(x - 2)
3. factor and solve the equation. 9x2 - 30x + 25 = 0
a. -5
b. -3/5
c. 5/3
d. 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.