Linear Equation Real World

A strong cold front blew through during the night.  The temperature outside began to drop rapidly.  The graph shows the temperature at each hour after the cold front blew through.  What is the rate of change of the graph?

• 2.5°F per hour

• 0.2°F per hour

• -0.2°F per hour

• -2.5°F per hour

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

In the equation y=mx+b, what does the m represent?

• slope

• y-intercept

• linear

• point-slope

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope in the equation y=2x + 3?

• 2

• 3

• 5

• Cannot be Determined 

Tags

CCSS.8.EE.B.5

What is the y-intercept in the equation
y= -2x + 5

• -2

• 3

• 5

• Cannot be Determined

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the y-intercept for the given graph?

• -5

• 5

• 1

• -1

Which equation has the greatest rate of change (slope)?

• y = 5x + 2

• y = -5x + 9

• y = 10x + 1

• y = -2x + 15

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Find the slope of the line.

• 1/2

• -1/2

• 2

• -2

Tags

CCSS.8.EE.B.5

After paying $5.12 for a salad, Kamauri has $27.10. How much money did he have before buying the salad?

• n + $5.12 = $27.10

• n - $5.12 = $27.10

• n - $5.12 = -$27.10

• $5.12 - n = $27.10

Tags

CCSS.HSA.CED.A.3

Which equation would describe "two times a number plus five equals 15"?

• x + 5 = 15

• 2x + 5=15

• x + 2(5) = 15

• 2(x + 5) = 15

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

Tags

CCSS.7.EE.B.4A