standard_description: Write, read, and evaluate expressions in which letters stand for numbers.
problem_activity: Problem 1
Graph the system of equations in the coordinate plane and identify the solution.
{"table": [{"_attributes": {"class": ["table"], "style": "width: 100%;"}, "tbody": [{"tr": [{"td": [{"span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${y=4}$$"}, {"_attributes": {"class": ["math-tex"]}, "_value": "$${y=-x+2}$$"}], "br": [{}]}, {"_attributes": {"style": "text-align: center;"}, "img": [{"_attributes": {"alt": "", "src": "https://d21royfkw9g4l6.cloudfront.net/uploads/2022/09/23/slice-1-2022-09-23t102423420.png", "style": "width: 425px; height: 415px;"}}]}]}]}]}]}
Problem 2
Graph the system of equations in the coordinate plane. Identify the solution to the system and verify it algebraically.
{"table": [{"_attributes": {"class": ["table"], "style": "width: 100%;"}, "tbody": [{"tr": [{"td": [{"p": [{"span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${2x-3y=18}$$"}]}, {"span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${2x+y=2}$$"}]}]}, {"p": [{"_attributes": {"style": "text-align: center;"}, "img": [{"_attributes": {"alt": "", "src": "https://d21royfkw9g4l6.cloudfront.net/uploads/2022/09/23/slice-1-2022-09-23t103817981.png", "style": "width: 425px; height: 314px;"}}]}]}]}]}]}]}
Problem 3
Line
$$a$$
is shown on the coordinate grid. Construct line
$$b$$
on the coordinate grid so that
Line
$$a$$
and line
$$b$$
represent a system of linear equations with a solution of (
$$6$$
,
$$-2$$
).
The slope of line
$$b$$
is greater than
$$-1$$
and less than
$$0$$
.
The
$$y$$
-intercept of line
$$b$$
is positive.
[IMG]


aligns: no