How would you explain the relationship between the real zero(s) of the function and x-intercept(s)
of the graph?
Since the graph crosses the x-axis at x = -2,
the function has a real zero of x = -2.
O
Since the graph never crosses the x-axis, the
function has no real zeros.
O
Since the graph eventually crosses the x-
axis, the function has a real zero.
nce the graph crosses the y-axis at 9, the
1
function results in a real zero of x = 9 ?.

step-by-step explanation:

a and d

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !