Math Slope and Y Intercept and Graphs

Jenny writes the equation y = 1/2x +5.
Why is she incorrect?

• The slope is -2, the equation should be
  y = -2x + 5

• The y-intercept is 4, the equation should be y = -2x + 4

• The slope is -1/2, the equation should be
   y = -1/2x + 5

• The y-intercept is -5, the equation should be y = -2x - 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which graph shows the equation y = 2/3x - 3

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The equation for slope-intercept form is y=mx + b, where m= ______(constant rate) and b=_______

• slope, x-intercept

• rate

• equation

• slope, y-intercept

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What are possible slopes of a graph?

• only positive and negative

• positive, negative, undefined, and zero

• only undefined and zero

• zero

Tags

CCSS.8.EE.B.5

Which describes a PROPORTIONAL relationship?

• crosses through the origin and is linear

• y=mx+b

• y/x is not the same

• each/per plus+ something

Tags

CCSS.7.RP.A.2D

Another word for slope is....

• rate of change

• fills the inside

• covers the outside

• change in size

Tags

CCSS.8.EE.B.5

Lines who's graphs do not intersect are

• Y-Intercept

• Coincident Lines

• Parallel Lines

• Perpendicular Lines

Tags

CCSS.8.EE.C.8B

Which ordered pair represents the solution to the equations shown in the graph?

• (0, 6)

• (6, 0)

• (0, 10)

• (10, 0)

Tags

CCSS.8.EE.C.8B

The first equation in a system of two equations is x + 4y = 8. If the graph of the second equation does not intersect the graph of the first equation, what could be a second equation for this system?

(HINT: Convert the first equation to slope-intercept form.)

• y = 4x + 1

• y = 1/4x - 2

• y = -4x + 3

• y = -1/4x - 5

Tags

CCSS.8.EE.C.8B

Jessica is solving the system of equations shown below.

y = 3x + 2

y = 2x + 7

If she graphs this system on a coordinate plane, how could she interpret the solution of this system?

• The system will be parallel.

• The system will be one line.

• The system will intersect at one point.

• The system will intersect at two different points.

Tags

CCSS.8.EE.C.8B