Semester final review

Which equation is parallel to:
y = 5/7x +2

• y = -7/5x +1
• y = 7/5x +4
• y = -5/7x -3
• y = 5/7x +5

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

If a line has a slope of -1/7 a line that is perpendicular has a slope of what?

• 7

• -7

• -1/7

• 1/7

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y + 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

Use the figure to write and solve an equation for x.

• 5
• 6
• 7
• 8

Find the value of x. 

• x = 133
• x = 47

WHAT IS THE CORRECT EQUATION TO FIND THE VALUE OF X?

• X=12
• 8X - 17 + 5X +19 = 180
• 8X - 17 = 5X +19
• X= -12

WHICH IS THE CORRECT EQUATION TO SOLVE FOR X? 

• 16X+180 = 90
• 12X - 19 = 4X +1
• 12X - 19 + 4X +1=90
• 12X - 19 + 4X +1=180

The figure is a parallelogram.  
Solve for x.  

• 7
• 1
• 5
• 2

The figure is a parallelogram.  
Solve for x.  

• 1
• 10
• 4
• 5