Solving Equations
Solve -7x + 5 = -16
x = 3
When solving an inequality, when should you flip the inequality symbol?
When multiplying or dividing by a negative
Write the formulas for slope-intercept, standard, and point-slope form.
y=mx+b, Ax+By=C, and y-y1=m(x-x1)
What is the slope of a line parallel to y = x + 2
m = 1
Solve 2(x + 3) + 4 = 3x - 1
x = 11
Solve 5x - 4 < 2x + 8
x < 4
What are the point and slope of the linear equation
y - 3 = -(x + 4)
(-4, 3); m = -1
Solve I = prt for r
r = I/pt
6x + 5 = -(2x + 11)
x = -2
Solve 5(x + 1) - 2 > -3x - 1
x > -1/2
What are the x- and y- intercepts of 6x - 4y = -36
(-6, 0) and (0, 9)
What is the slope of a line perpendicular to
5x - 3y = 10
No solution
Solve -5<3x+1<10
-2<x<3
Write an equation in slope-intercept form that passes through the point (-2, 5) and has a slope of 1/2.
y = 1/2x + 6
Solve the following absolute value equation
|2x - 4| - 6 =
x = {-1, 5}
3(2x - 5) = 6x - 15
Infinitely many solutions
Solve 2x -1 < -5 OR 3x + 2 > 11
x < -2 or x > 3
Write an equation in point-slope form that passes through the points (7,-2) and (1, 6).
y+2=4/3(x-7) or y-6=4/3(x-1)
Is the following relation a function? Explain why or why not.
{(-2, 3), (4, 5), (-1, 3), (6, 7), (4, 1)}
No, there is a repeated x-value (4)