Solve:
2x+3=21
x=9
Solve:
3(x+2)=27
x=7
What letter represents slope?
m
What is the equation for point-slope form?
y-y_1=m(x-x_1)
What do the m and b represent in slope-intercept form?
y=mx+b
m = slope
b = y-intercept (where the graph crosses y-axis, also the point (0, b))
Solve:
3x-5=13
x=6
Solve:
5(n+3)=30
n=3
A vertical line has a _______ slope.
Positive/Negative/Zero/Undefined
Undefined
Given a point on a line (3, 5) and the slope of the line m = 4, give the equation of the line in point-slope form.
y-5=4(x-3)
Given a slope m = 5 and a y-intercept of -7, write the equation for the line in slope-intercept form.
y=5x-7
Solve:
10+4n=26
n=4
Solve:
7(2n-4)=14
n=2
A horizontal line has a __________ slope.
Positive/Negative/Zero/Undefined
Zero
Given a point on a line (7, -3) and slope of the line m = -2, give the equation of the line in point-slope form.
y+3=-2(x-7)
Given a slope m = 2 and a point (0, 3) write the equation of the line in slope-intercept form.
y=2x+3
Solve:
12t-5=1
t=1/2
Or
t=6/12
Solve:
3(4t-3)=7t+11
t=4
Calculate the slope between these two points:
(3, 5) and (6, 14)
m=3
Given two points (4, 8) and (2, 2) find the equation of the line in point-slope form.
y-8=3(x-4)
OR
y-2=3(x-2)
Given two points (5, 7) and (8, 13), find the equation of the line in slope-intercept form.
y=2x-3
Calculate the slope from the table of values:

m=4