Equations for Slope on a Graph

Which of these graphs represents the equation
y = -5x + 2

• Graph A

• Graph B

• Graph C

• Graph D

What is the solution to the set of equations?
y = -x - 2
y = -5x + 2

•   (3, 1)

•   (1, -3)

•   (-1, -3)

•   (-3, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Refer to number 12 on your review for the scenario for this problem.
The inequalities are
y ≥ -.25x + 6   and  y ≤ 2/3x
If x represents weeks, after how many weeks will their sales begin to overlap?

•   After 9 weeks

•   In less than 6 weeks

•   After 2 weeks

•   In less than 7 weeks

Which statement correctly describes the graph?

• The lines are parallel because they have different slopes.

• The lines are NOT parallel because they have different y-intercepts.

• The lines are parallel since they have the same slope and different y-intercepts.

• The lines are perpendicular.

Parallel Lines have equations with equal slopes and different y-intercepts.  TRUE OR FALSE

• TRUE

• FALSE

Given the equations below determine if they are parallel or not.  y = 4x - 2 and   y = 5 + 4x

• Yes, They are parallel

• No, They are not parallel

Tags

CCSS.8.EE.C.8B

Are the following equations parallel or not? HINT: Solve the second equation for y so that it is in y=mx + b form. y = 2x - 5 and 4x + 2y = 10

• Yes, they are parallel

• No, they are not parallel

Tags

CCSS.8.EE.C.8B

Given the equations in point slope form, do the equations form parallel lines? y - 2 = 4(x + 1) and y - 2 = 4(x + 6)

• Yes, they are parallel

• No, they are not parallel

A second linear equation is graphed next to the equation y = 5x + 10. Which of the following could represent the slope and y-intercept of the line if the 2 lines are parallel?

• m = 10, y-int: (0, 5)

• m = 5, y-int: (0, 10)

• m = 5, y-int: (0, 4)

• m = 2, y-int: (0, 5)

Tags

CCSS.8.EE.C.8B

Which of the following is an equation of a line in point slope form, with a slope of -5 that goes through the point (2, -3)?

• y - 2 = -5(x - 3)

• y + 3 = -5(x - 2)

• y - 3 = -5(x + 2)

• y - 5 = 2(x + 3)