Identify Parts of Eq
Which is the slope?
y = 2x + 10
2
Which letter represents the slope?
m
What type of slope does a line have that is going down from left to right?
negative slope
What is the equation in slope-intercept form if
m = 7 and b = 3
y = 7x + 3
True or False
y = mx + b is a linear equation
true
Which number is the y-intercept?
y = 3x + 21
21
Which letter represents the y-intercept?
b
What type of slope does a line have that is going up from left to right?
Positive slope
Write in slope-intercept form: slope = 4; y-intercept = -6
What is y = 4 x - 6?
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. What is the relationship between the x and y values?
y=5x+3
Which number is the slope?
y = 4x + 20
4
What does the letter m stand for?
the slope of the line
What type of slope does a line have that is going straight up and down?
Undefined slope
What are three key phrases that indicate y intercept from a word problem?
initial fee, one time fee, starting point, unchanging amount, beginning point, one time charge
What is the y-intercept?
y = 4x + 8
8
What does the letter b stand for?
the y-intercept
What type of slope does a line have that is going straight across from left to right?
Zero slope
Identify the y-intercept: y = 3/4 + 2
What is 2?
Rufus collected 100 pounds of aluminum cans to recycle. He plans to collect an additional 25 pounds each week. Write an equation in y=mx+b form.
y=25x+100
What is the slope?
y = 1/2x + 2
1/2
To find the slope of a line, you use ___ over ___.
Rise over run
Is this written in slope intercept form?
y = mx + b
yes
Write in slope-intercept form: slope = 2; y-intercept = 10
What is y = 2x + 10?
A canoe company has a $25 coupon off any rental. A canoe rental cost $45 per hour. Write an equation in y=mx+b form.
y=45x-25