y = mx + b
what is y=mx+b?
slope-intercept form
Solve 2x = 6
3
Solve for x: 2(x - 3) + 4 = 12
2x - 6 + 4 = 12; 2x - 2 = 12; 2x = 14; (x = 7)
Solve for x: (3x + 2)² = 25
Solution: 3x + 2 = ±5; 3x = -2 ± 5; x = -7/3, 1
what x-intercepts and the y-intercepts
3x−7y=10
y-intercept= (0, -10/7)
x-intercept= (10/3, 0)
What number is the slope?
y=3x+8
3
Solve for x: 3x + 5 = 17
Solution: 3x = 12
(x = 4)
Solve for y: -3y - 1 = 8
-3y = 9; y = -3
Simplify: (2a + 3)(a - 4)
Solution: 2a² - 5a - 12
what are the x-intercepts and the y-intercepts
y=6−x2
y-intercept=(0,6)
x-intercept= (−√6,0) and (√6,0)
Solve x + 5 = 15
x = 10
Solve for y: 2y - 8 = 10
Solution: 2y = 18? (y = 9)
Solve for x: x² - 9 = 0
x² = 9; x = ±3
Solve for x: x² + 5x + 6 = 0
Solution: (x + 2)(x + 3) = 0; x = -2, -3
x-intercepts and the y-intercepts for the following equation.
y=x2+6x−7
y-intercept=(0,-7)
x-intercept= (−7,0) and (1,0)
what number is the y-intercept?
y=13x+21
21
Solve 2x - 4 = x - 10.
x = -6
Solve for x: x + 5 ≤ 15
x ≤ 10
Find the slope of the line passing through the points (2, 4) and (5, 10)
Solution: (10 - 4)/(5 - 2) = 6/3 = 2
x-intercepts and the y-intercepts for the following equation.
y=x2+10
y-intercept=(0,10)
x-intercept=NONE
Find the equation of a line with a slope of 2 and a y-intercept of 3.
slope-intercept form: y = 2x + 3
Simplify: (5x² + 2x - 3) + (2x² - 5x + 1)
Solution: 7x² - 3x - 2
Solve for y: 2y - 4 > y - 10
Solution: y > -6
What is the y-intercept of the line y = 3x - 5?
Solution: The y-intercept is -5
x-intercepts and the y-intercepts for the following equation.
y=x2+6x+58
y-intercepts=(0,58)
x-intercepts=NONE