Multiply the input by 3/4 ,then add 2

Step-by-step explanation:

Let

x-------> the input (independent variable)

y------> the output (dependent variable)

we know that

This is a linear equation-------> equation of a line

To graph the line

Find the intercepts

The y-intercept is the point ---> value of y when the value of x is equal to zero

The x-intercept is the point ---> value of x when the value of y is equal to zero

Plot the points

The graph in the attached figure

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.