Answer:
Step-by-step explanation:
look at it
So, let's make these two values improper fractions so they're easier to work with. 
So, to get the rate he grew in those months we have:
And to get the rate he grew in one month we have to divide both our numerator and our denominator by 21 to get:
aka he grew 1.24 inches in a month.
Answer:
Graph is attached below
Step-by-step explanation:
Intercepts are values of x and y at which the graph of the function intersects coordinate axis.
Given equation,

For x-intercept,
y = 0,



Thus, x-intercept is at (-6, 0)
For y-intercept,
x = 0,

Thus, y-intercept is at (0, -3)
Now, join these two points to show the line in coordinate plane.