Slope Intercept Form
What does the b represent in the formula for slope-intercept form? (Hint: y = mx + b)
b is the y-intercept
What do you need to do to graph an equation in standard form?
Convert to slope-intercept form.
A linear equation has an equal sign and a linear inequality has an inequality symbol.
What were the three methods used to solve a system of equations from class this week?
1. Graphing
2. Substitution Method
3. Elimination Method
What is the state capital of Massachusetts?
Boston
What is the slope and y-intercept in the following equation?
y = -3x + 5
The slope is -3 and the y-intercept is 5.
What is the general equation for standard form?
Ax + By = C
What happens to an inequality when you multiply or divide by a negative number?
The inequality symbol flips.
What would "no solution" for a system of equations look like?
How many countries are there in the world (according the UN)?
195 countries!
What is the formula we use to find slope when you have two points on a graph?
What is the slope of the following equation?
5x + 2y = 10
The slope is -5/2
3x + 6 < 18
x < 4
What would infinite solutions look like for a system of equations if you graphed it?
It would look like two lines graphed right on top of each other. Two lines that are the same.
Name a country that starts with the letter H.
Haiti, Honduras, or Hungary
If you have the points (2,2) and (4,3) on a graph, what is the slope?
What is the y-intercept for the following equation?
9x + 7y = 0
The y-intercept is 0.
What would this inequality look like if you graphed it? (Include whether it'd be a solid or dotted line and whether you'd need to shade to the left or right of the line).
x < -7
A dotted vertical line at -7 on the x-axis with shading to the left of the line.
Which of the three methods requires that you add both equations together and combine like terms to solve for one variable?
Elimination Method
The liver
If you have the points (0,2) and (1,-1), what is your y-intercept?
The y-intercept is 2.
What would the following equation be if you converted it to slope-intercept form?
-4x + 2y = 8
y = 2x + 4
If you were to graph the following linear inequality would it have a solid line or a dotted line and would shade above the line or below the line?
2y >= 6x + 2
A solid line and shade above the line.
The difference of two numbers is 8. Their sum is 18. Find the numbers.
Equations:
x - y = 8
x + y = 18
So 13 and 5
What college does Jordan attend?
Howard University