1st Degree Equations
x+7=4
x=-3
y = 2x & y = -10
(-5,-10)
What is the y intercept of y = 3x -7
-7
x + 7 < 10
x < 3
Function or Not {(1,2),(2,3),(3,4),(3,5)}
Not
2x - 3 = 5
x = 4
y = 2x +3 and y = 3x - 1
(4,11)
What is the slope of y - 3x = -7
3
7 - x >10
x < -3
If f(x) = 2x - 7 find f(-2)
-11
4 - x/3 = 2
x = 6
x + y = 7 and x - y = -3
(2,5)
Is x = 7 a vertical or horizontal line?
vertical
3x - 5 > 13
x > 6
Write and equation if y varies directly as x and y = 20 when x = 5
y = 4x
3x - 8 = 5x
x = -4
3x + 5y = -18 & x - 10y = 29
(-1,-3)
what is the slope of 2y - 3x = 5
3/2
2x - 7 < 5x + 2
x > -3
Write and equation if y varies inversely as x and y = 20 when x = 5
y = 100/x
2x + 3 = 3x - 4
x = 7
2x - 3y = -19 & 3x + 4y = 14
(-2,5)
Write 3x - 5y =15 in y = mx + b form
y = 3/5x + 3
5x - (2x + 3) < (x + 3) + 4
x < 5
If y varies directly as x and inversely as z and y = 20 when x = 5 and z = 2 find y when x = 10 and z = 4
y = 20