Warm UP: Solve and check: 1) 3n – 7 = 262) 3(-4x + 2) = 6(2 + x) Solve and graph each solution on a number line: 3) 5p > 10 or -2p ≤ 10 Solve and check: 4) 5)

Algebra 2: Review #2 of Algebra 1 Skills

Graphing Linear Equations X only equations are VERTICAL lines and have UNDEFINED slope Y only equation are HORIZONTAL lines and have ZERO slope For Diagonal Lines (equation contains BOTH x & y): Put the equation in y = mx + b form Identify the slope (m) and y-intercept (b) Plot the y-intercept point on the y-axis From the y-intercept point move the value of the slope (rise over run) to plot more points

Graphing Linear Equations (Cont) 1) 3x – 2y = -62) y = 23) x = -8 4) y = x – 35) 2x – 5y = 15

Graphing Linear Inequalities Graph the line as we did above  If dashed line, if ≥, ≤ solid line  Shade > above or < below or test a point to find true side 1) y - 8

Graphing Absolute Value Functions  All absolute value graphs look like the letter V when graphed.  y = (parent function, vertex is on origin)  Vertex form: y = a + k  where the vertex is at (h, k); value is the opposite of h, same k Find the vertex, then make an XY table to find more points. (Every point found has a reflection) 1) y = 2) y = 3) y =

Graphing Quadratic Functions

Warm UP Graph: 1) y = -3x + 12) x = -23) y = x ) y = 5) -3x + 2y > 6