Identifying the Y-Intercept
What is the y-intercept in the equation:
y= 2x + 5
Calculate the slope of the points:
(8, -10) and (7, -3)
m = -7
Put the standard form equation into slope-intercept:
36x - 6y = -6
y = 6x + 1
Write a point- slope equation with the give slope and points:
m= 7/8, (2,5)
y - 5 = 7/8 (x - 2)
Put the standard form equation into slope-intercept
36x - 6y = -6
y = 6x + 1
What is the y-intercept in the equation:
y=4/9x + 7
7
Calculate the slope of the points:
(0,−2) and (4,10)
m = 3
Put the standard form equation into slope-intercept:
-4x + 2y = -10
y = 2x - 5
Write a point- slope equation with the give slope and points:
m= 3 , (7, 2)
y - 2 = 3(x - 7)
Put the standard form equation into slope-intercept
20x + 4y = 4
y= -5x + 1
What is the y-intercept in the equation:
8x + 4y = 16
4
Calculate the slope of the points:
(-5, -3) and (2, 1)
m = 4/7
Put the standard form equation into slope-intercept:
20x + 4y = 4
y = -5x + 1
Put the point- slope equation into slope-intercept form
y - 6 = 10(x - 4)
y = 10x − 34
Put the standard form equation into slope-intercept
-10x +2y = 8
y = 5x + 4
What is the y-intercept in the equation:
-30x + 5y = 5
5
Calculate the slope of the points:
(3, 7) and (9, 7)
m = 0
Put the standard form equation into slope-intercept:
-12x + 6y = 30
y = 2x + 5
Put the point- slope equation into slope-intercept form:
y - 2 = 9(x - 7)
y = 9x − 61
Put the standard form equation into slope-intercept
12x - 3y = 9
y = 4x - 3
What is the y-intercept in the equation:
-12x + 3y = 36
12
Calculate the slope of the points
(-6, 0) and (3, 6)
m = 2/3
Put the standard form equation into slope-intercept:
-6x -6y = 0
y = -x OR
y = -1x
Put the point- slope equation into slope-intercept form:
y − 3 = 2(x−4)
y= 2x − 5
Put the standard form equation into slope-intercept:
-16x + 4y = 0
y = 4x