Three Step Math Problem Linear Equation

Four years ago, Luna was 6 times as old as her cousin. Six years ago, her age was 2 years more than eight times her cousin’s age. How old is Luna?

• 20 years old

• 25 years old

• 30 years old

• 40 years old

Tags

CCSS.8.EE.C.8C

Using the elimination method, what is the value of variable x in this system of linear equations

• 3

• 12

• 0

• 9

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Jonathan is six years older than Joshua. The sum of their ages is 48. Find Joshua’s and Jonathan’s age. What are the steps in solving Joshua and Jonathan’s age in chronological order?

• I, II, III, IV

• II, IV, I, III

• II, I, III, IV

• II, I, IV, III

Tags

CCSS.8.EE.C.8C

What is the first step in graphing the system of linear equations in two variables using slope and y-intercept?

• Determine the slope and y-intercept of each equation.

• Plot the point containing the y-intercepts of each equation.

• Use the slopes to locate the other points of each equation.

• Write each equation into the slope-intercept form y = mx + b.

Tags

CCSS.HSA.REI.D.12

How many solutions does the system pictured have?

• 0

• 1

• 2

• Infinitely many

Tags

CCSS.8.EE.C.8B

Which of the following is true about the (x, y) solution to a system of linear equations?

• It makes the first equation true.

• The (x,y) coordinates make both equations true.

• It makes the second equation true.

• It makes neither equation negative

What is the solution to the system of linear equations shown on the graph?

• (1, 0)

• (-3, -1)

• (-1, -3)

• (1, 3)

Tags

CCSS.8.EE.C.8B

If a system of equations has no solution, what does the graph look like?

• intersecting lines

• parallel lines

• skew lines

• identical (coinciding) lines

Tags

CCSS.8.EE.C.8A

• (0, 3)

• (0, -3)

• (3, 0)

• (-3, 0)

Tags

CCSS.8.EE.C.8B

• Infinity

• (3, 3)

• (3, -3)

• (-3, 3)

Tags

CCSS.8.EE.C.8B