Slope from Two Points
Find the slope between: (2, 2) & (5, 7).
5/3
What is the y-intercept in the equation:
y=5x+3
3
True or false (1,3) is a solution to the equation:
2x+y=5
True!
2(1) + (3) = 5
2 + 3 = 5
5 = 5 TRUE!
Write the equation of a line whose slope is 2/3 and whose y-intercept is -3.
y=2/3x-3 or y=2/3x+(-3)
Find the slope betweeen: (2, -4) & (6, -1)
3/4
What is the y-intercept in the equation:
y=2/3x-10
-10
True or false (5,3) is a solution to the equation:
x+3y = 13
False!
(5) + 3(3) = 13
5 + 9 = 13
14 = 13 NOT TRUE.
Write the equation of a line whose slope is -6 and whose y-intercept is 5.
y=-6x+5
Find the slope between: (10, 2) and (3, 3)
1/-7 or -1/7
What is the slope in the equation:
y=2/5x-7
2/5
True or false, (-3, 2) is a solution to the equation:
2x+8=y
True!
2(-3) + 8 = (2)
-6 + 8 = 2
2 = 2 True!
Write the equation of a line whose slope is 1/4 and has a proportional relationship.
y=1/4x
Find the slope between:
(-4, 2) & (-7, 8)
6/-3 or -2
What are the slope and the y-intercept in the equation:
y=-3/2x
Slope:-3/2
Y-intercept: 0
True or False (6,-2) is a solution to the equation:
2x+3y=6
True!
2(6) + 3(-2) = 6
12 + (-6) = 6
6 = 6 True!
Write the equation of a horizontal line whose y-intercept is -2.
y=-2
Find the slope between: (5, -2) & (9, -2)
Zero!
What is the slope of the line:
y=3
Zero Slope
True or False (-4,5) is a solution to the equation:
-3x+2y=24
False!
-3(-4) + 2(5) = 24
12 + 10 =24
22 = 24 NOT TRUE.
Write the equation of a vertical line whose x-intercept is 4.
x=4