Answer:
Find the x-intercept or 'zero'
Explanation:
Number 1
Substitute y=0
0=x+3/3
Solve the equation for x
x=-3
Number 2
Substitute y=0
0=1/2x+5
Solve the equation
x=-10
Number 3
Substitute y=0
0=4x^2
Solve
x=0
Number 4
Substitute y=0
0=1/2x^2
Solve
x=0
Hope this helps you can also use photo math :)