8th Math STAAR Review

Which equation is proportional?

PROPORTIONAL HAS NO + or -

• y=5x+1

• y=4x-3

• y=7x

• y=2x+7

Tags

CCSS.7.RP.A.2D

Is the equation y=7x+5 proportional or non-proportional?

PROPORTIONAL HAS NO + or -

NON-PROPORTIONAL HAS + or -

• proportional
• non-proportional

Tags

CCSS.7.RP.A.2C

y=18x  Proportional or non-proportional?
PROPORTIONAL HAS NO + or -

NON-PROPORTIONAL HAS + or -

• proportional
• non-proportional

Tags

CCSS.7.RP.A.2A

In order for a graph to be proportional it has to___?

PROPORTIONAL goes through (0,0) the origin

• pass over the y-axis
• pass over the x-axis
• pass through the origin

Tags

CCSS.7.RP.A.2D

Joe has a square tablecloth with a total area of 48 square feet. Which measurement is closest to the length of each side of the tablecloth in feet?

Take the SQUARE ROOT of the area

• 9.8 ft
• 5.0 ft
• 12.0 ft
• 6.9 ft

In order for a relationship to be a function, _____________.

FUNCTION: X-VALUES do NOT REPEAT

• the y-value cannot repeat
• the x-value cannot repeat

Tags

CCSS.8.F.A.1

Which set of ordered pairs represents y as a function of x?

FUNCTION: X-VALUES do NOT REPEAT

• (-9,2), (0,6), (1,-2), (-3,6)
• (-1,0), (4,3), (-7,-3), (-1,-8)
• (3,2), (-4,-2), (3,1), (-4,1)
• (5,4), (2,3), (1,1), (2,4)

Tags

CCSS.8.F.A.1