The line x=40 is horizontal line true or false??

x = 40 is actually a vertical line.

Step-by-step explanation:

Let (x, y) where x = 40. We will get (40,y).

Because there is no y-term or y-value. We can say that y is the set of all real numbers. That makes the graph a vertical.

A horizontal line would be y = b where b is a constant. We call y = b the Constant Function where the graph is a horizontal line.

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

step-by-step explanation:

let

we know that

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

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is