Coordinate Solutions

If two equations are graphed, how can you find the solution to the system of equations?

• Find the slope of point lines.

• Find where the lines intersect.

• Find where the slope is positive.

• Find where both lines cross the x-axis.

Tags

CCSS.8.EE.C.8B

Given that the graph represents a system of equations on a coordinate plane, how many solutions does the system have?

• no solution

• one solution

• infinitely many solutions

• can not be determined from the graph

Tags

CCSS.8.EE.C.8B

Given that they graph represents a system of equations on a coordinate plane, how many solutions does the system have?

• no solution

• one solution

• two solutions

• infinitely many solutions

Tags

CCSS.8.EE.C.8A

How many solutions can be found for the set of linear equations?

y = 7(x + 2) and y = 7x + 14

• no solution

• one solution

• two solutions

• infinitely many solutions

Tags

CCSS.8.EE.C.8B

What is the solution to system of linear equations graphed here?

• (0, 1)

• (1, -1)

• (0, -3)

• (-1, 1)

Tags

CCSS.8.EE.C.8B

• One Solution

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

How can you tell if a point is a solution to a system?

• It makes the first equation true.

• The (x,y) coordinates satisfy both equations

• It makes logical sense

• It makes neither equation negative

Given an equation with x and y and a pair of coordinate points, how do you know if the points are a solution?

• Plug them into the equation to see if they make the equation true.

• Guess.

• You will never know if it is true.

• Ask your teacher.

Is (1, 2) a solution to the linear equation 2x + 5y = 12?

• Yes

• No

Solutions to linear equations are....

• ordered pairs (x,y)

• slope

• y-intercept

Tags

CCSS.8.EE.C.8A