Slope Intercept Vertical and Horizontal

What would the graph of y = 8 look like?

• Horizontal line

• Vertical line

• Slanted line

• No way to tell

Which of the following would be graphed as a horizontal line?

• y = -4

• x = 7

• y = 3x-4

• None of the above

Which of the following would represent a vertical line?

• y = -5

• x = 3

• y = 4x +3

• None of the above

What would the graph of the equation x = -4 look like? 

• Horizontal line

• Vertical line

• Slanted line

• No way to tell

Shari takes violin lessons. The equation 288x – 4y = -192 relates y, the total cost of the lessons, and x, the number of lessons. Shari incorrectly states that the slope of the line is 288. Why did Shari think that 288 was the slope? Choose one option from each drop-down menu to answer the question. Shari thought that the ​ (a)   was the slope. She forgot to ​ (b)   . The correct slope is ​ ​ (c)   .

• write the equation in slope-intercept form.

• coefficient of x

• coefficient of y

• divide -192 by 4

• divide 288 by -4

• -48

• 72

• -72

• 48

• constant term

Shari takes violin lessons. The equation 288x – 4y = -192 relates y, the total cost of the lessons, and x, the number of lessons. Shari incorrectly states that the slope of the line is 288. Why did Shari think that 288 was the slope? Choose one option from each drop-down menu to answer the question. Shari thought that the ​ (a)   was the slope. She forgot to ​ (b)   . The correct slope is ​ ​ (c)   .

• write the equation in slope-intercept form.

• coefficient of x

• coefficient of y

• divide -192 by 4

• divide 288 by -4

• -48

• 72

• -72

• 48

• constant term

Find the slope of the line.

• Undefined

• 0

• 1

• -1

Find the slope.

• 0

• 4

• -4

• Undefined

What is the slope?

• undefined

• zero

• 4/1

• 4/0

• 0/4

Answer explanation

a vertical line always as an undefined slope because a vertical line has no "run"; slope is rise over run and anything divided by zero is undefined because you can not divide by zero

Find the slope

• 0

• -2/0

• -2

• Undefined