Review: Slope-Intercept Form
y = x + 5
A fish tank is being filled at a rate of 1 gallon per minute. It already had 5 gallons of water in it. Which equation represents this situation?
y = -10x + 7
A penguin is 7 feet above the water on a glacier. he dives into the water and is descending at a rate of 10 inches per second. Which equation represents this situation?
y = -7x + 10
A pot of water is boiling 10 degrees above the boiling temperature of water. Milo turns off the stove to let the water cool. The water temperature decreases at a rate of 7 degrees per minute. Which equation represents this situation?
y = 10x - 7
An ant is on her way to climb up a tree at a rate of 10 cm per second. She is currently in her home 7 cm below the ground. Which equation represents this situation?
y = -x + 6
Bryan's bunny is on the stairs, 6 stairs above the bottom floor. When the dog comes around the corner, the bunny hops down the stairs 1 stair per second. Which equation represents this situation?
-1/26
Find the slope of the line connecting these points.
-8/11
Find the slope of the line connecting these points.
11/2
Find the slope of the line connecting these points.
-5/2
Find the slope of the line.
1/2
Find the slope.
y = 5x + 3
For babysitting, Nicole charges a $3 flat fee and $5 per hour. Which equation represents this situation?
y = 7x + 10
Marci deposits $10 in a savings account. She decides to deposit $7 per week into her savings account to start saving for a car. Which equation represents this situation?
slope
The measure of the steepness of a line
y-intercept
The point where the graph crosses the y-axis and x equals 0
negative
The slope of the line is: A. positive B. negative
Negative
Type of Slope
Positive
Type of slope
5
What is the slope of the equation" y=5x
5/3
What is the slope of the line y = 5/3 x?
-2
What is the slope of this line? Hint: RISE over RUN
-4
What is the y-intercept of the equation y = -3x -4?
11
What is the y-intercept of the equation: y = -6x + 11
-14
What is the y-intercept of the equation: y = -x - 14
7
What is the y-intercept of the line y = 4x + 7?
8
What is the y-intercept of the scatter plot?
Horizontal Line
What kind of line has a 0 Slope?
Vertical Line
What kind of line has an Undefined Slope?
undefined
slope of the line x = 4
-1
slope of the line y = -x + 1
3
slope of the line y = 3x - 7
2
slope of the line y = 4 + 2x
linear
straight line
initial value
the starting amount or point
0
y -intercept of the line y = 3x
1
y-intercept of the line y = -x + 1
4
y-intercept of the line y = 3x + 4
Slope-intercept form for equation of a line.
y=mx+b
slope-intercept form
y=mx+b, where m is the slope and b is the y-intercept of the line.