What is the value of f(x) = 5x + 1 at f(-4) ? A) -19 1 C) 21 D) -21

A) -19

Step-by-step explanation:

what its saying is to plug in -4 as x

5 x -4 + 1

-20 + 1 = -19

d

step-by-step explanation:

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.