Graph Linear Equations Slope Intercept Form

Why will these graphs never cross?

• They have the same y-intercept.

• They have the same slope.

• They are both lines.

• They are both positive slopes.

What is the slope of the equation?

y = -2x - 1

• 2

• -2

• -2x

• -1

Find the slope and y - intercept

y = -1 + 3x

• slope: 3 y-intercept: -1

• slope: -1 y-intercept: 3

• slope: 3x y-intercept: 1

• slope: -1 y-intercept: 3x

What is the y-intercept in the equation

y= -2x

• -2

• -2x

• 0

• 1

What is the slope-intercept form for the graph?

• y = -3x + 1

• y = -3x - 1

• y = 3x + 1

• y = 3x - 1

Which is the graph of y = -x + 2?

• A

• B

• C

• D

Which shows the graph of the equation y = -x + 3?

• A

• B

• C

Which is the graph of y= -x + 2?

• A

• B

• C

• D

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

How many solutions?

• One Solution

• No solution

• Infinitely Many Solutions