1 Simplify the expression a 7x 19 2 3 4 b C Determine whether the quadratic function y x 12x 39 has a minimum or a maximum and

Question

1 Simplify the expression a 7x 19 2 3 4 b C Determine whether the quadratic function y x 12x 39 has a minimum or a maximum and then find the value use the value of A in Ax Bx C to determine if your graph is a parabola facing up minimum at y value of vertex or down maximum at y value of vertex Find the x value of the vertex using x then insert the value of x into the original equation to find the y A B C 7x Maximum at 3 Minimum at 3 Maximum at 3 Minimum at 3 Solve 3x 31x 36 using the quadratic formula a b C b b 4ac x 2a Set your equation equal to 0 prior to replacing variables You need your equation in standard form Ax Bx C x 4 and x 9 x and x 4 x 4 and x 9 x and x 9 The electric current I in amperes an appliance uses is given by where P is the power in watts and R is the resistance in ohms Estimate the current an appliance uses when the power is 160 watts and the resistance is 7 ohms Round to the nearest tenth input the numerical values given for the corresponding variables P and R divide the fraction then square root the number you get from 1 4 8 a b 1 5 1 1 5 3 d 17 2 5 Factor the polynomial x 14x 48 a x 6 x 8 x 6 x 8 C x 12 x 4 d x 12 x 4 6 Period Solve 2x 4x 70x 0 select all that apply the highest exponent is 3 so you should have 3 answers You need to check for a GCF first then factor the remaining polynomial using AC method You can also take out the GCF and the remaining polynomial if quadratic you can use the quadratic formula to find two of the x values or just plug in the given values below and see which ones make the equation true 7 D 5 D 0 2 0 05 7 7 The function h t 16t 64t represents the height h in feet of a kickball t seconds after the ball is kicked from the ground select all the following statements that are correct Max height of the ball is 64 feet Axis of symmetry is at t 3 On the left side of the axis of symmetry the height decreases as S time increases On the left side of the axis of symmetry the height increases as time decreases On the right side of the axis of symmetry the height decreases as time increases On the right side of the axis of symmetry the height increases as time decreases For problems 8 10 write your answer in radical and or fraction form if your result is NOT a whole number No Decimals 8 Simplify the expression VT6 2 2 9 Simplify the expression V 64 10 Simplify the expression 49 4 3 7

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