Slopes and Intercepts
Find the slope of the line through (1,2) and (3,6).
What is m=2
Write the slope-intercept form of a line with slope 2 and y-intercept 3.
What is y=2x+3
A parking garage charges $5 flat fee plus $2 per hour. Write the cost function.
What is C(x)=5+2x
The steepness of a line, calculated as “rise over run.”
What is slope
I’m the only place where today comes before yesterday. What am I?
What is a dictionary
What is the slope of a horizontal line?
What is m=0.
Write the equation of the line through (0,4) with slope −1/2
What is y=−1/2x+4
A gym charges $20/month plus $100 sign-up fee. Write the cost function.
What is C(m)=100+20m
The point where a line crosses the y-axis.
What is the Y-intercept
I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?
What is an echo
Find the y-intercept of y=5x−7.
What is b=-7
Write the equation of the line through (2,5) with slope 4.
What is y=4x−3
A streaming service charges $12 per month. Find the cost for 6 months.
What is $72
A line that goes straight up and down, slope is undefined.
What is a vertical line
You throw me out when you need me, but bring me back in when you’re done. What am I?
What is an anchor
Find the slope and y-intercept of y=3/4x−9
What is m=3/4 and b=-9
Write the equation of the line through (0,0) and (6,9).
What is y=3/2x
A concert ticket is $75 plus a $10 service fee per ticket. Cost function for n tickets?
What is C(n)=85n
The equation of a line in the form y=mx+b
What is Slope-intercept form
You see a boat filled with people. It hasn’t sunk, but when you look again you don’t see a single person on board. Why?
What is All the people were married (so no single people)
Find the slope and y-intercept of 4x+2y=10
What is m=-2 and b=5
Write the equation of the line with slope 1/3 passing through (3,2).
What is y=1/3x+1
A car’s value is $25,000 and decreases $2,000 per year. Write function and value after 3 years.
What is V(t)=25000−2000t, V(3)=19000
What is the main difference between a linear equation and a quadratic equation?
What is a linear equation has a variable raised only to the first power and graphs as a straight line, while a quadratic equation has a variable raised to the second power (x2) and graphs as a parabola.
You see me once in June, twice in November, but not at all in May. What am I?
What is the letter “E”