Formulas and Vocab
Perpendicular and Parallel Lines
Slope
Word Problems
100
What is slope intercept form?
y=mx+b
100
Determine the equation of a line that is parallel to the following:
y=-1/5x+3
y=-1/5x+2
100
Use the following equation to identify the slope and y intercept:
y=-x+4
Slope: -1
y-intercept: 4
100
What method is used to find the x and y intercept when an equation is in standard form?
The coverup method
200
What is the slope of a horizontal line?
Slope: 0
200
Determine the equation of a line that is perpendicular to the following:
y=6x+4
y=-1/6+2
200
Find the slope between the following pair of points:
(-3, 5) and (2, 1)
Slope: -4/5x
200
A restaurant sells tacos for $5 and burritos for $10. Write an equation to model the number of tacos(x) and burritos(y) you can buy for $50 and identify the x and y intercept.
5x+10y=50
x-intercept: (10, 0)
y-intercept: (0, 5)
300
What is the slope of a vertical line?
Slope: undefined
300
Determine if the following lines are perpendicular, parallel, or neither:
y= -5x+1
y= 5x+2
Neither
300
Find the slope between the following pair of points:
(3, 15) and (-6, 9)
Slope: 6/9 or 2/3
300
A fruit stand is selling apples(x) for $1 and and oranges(y) for $2. Write an equation to model the number of apples and oranges Cam can buy with $12 and state what the point (4, 4) represents in the context of the problem.
x+2y=12
If Cam buys 4 apples, she can buy 4 oranges
400
What is slope formula?
y2-y1
m= ----------
x2-x1
400
Determine if the following lines are perpendicular, parallel, or neither:
y= x-3
y= -8-1/2x
Perpendicular
400
Write the equation of the following graph in slope intercept form:
y=x
400
A movie theatre sells adult tickets for $15.00 and children's tickets for $8.00. Write an equation to model the number of adult tickets(x) and children's tickets(y) you can buy for $40.00.
15x+8y=40
500
What is standard form?
ax + by =c
500
Determine if the following lines are perpendicular, parallel, or neither:
y= 4x+2
y= 4x-2
Parallel
500
Graph the following line:
x=-3
500
A candy store sells pieces of taffy for $0.50(x) and chocolate bars for $1.75(y). If Jen has $10 and buys 15 pieces of taffy, how much chocolate can she buy with the leftover money.
.50x+1.75y=10
.50(15)+1.75y=10
7.5+1.75y=10
1.75y=2.5
y=1.4 (round down)
She will only be able to buy 1 bar of chocolate