M9

E- PRETEST Direction: Choose the letter that corresponds to the correct answer. Use the equation gtx}=x1 +2 in answering questions nos. 1-4 1. At what point does the graph intersect at x=2? a. 4 b. 6 2. What is the slope of the graph at x = 2 \"P a. 4 b. 2 3. What is the equation of the line at x: 2? a.y=4x2 b. yzdx-M 4. Which of the following refers to a line that intersect the graph at exactly one point? a. secant h. tangent 5. Which of the following is the formula in nding the slope of a tangent line at a given point? foamsfor} hm: \"morass-foo} H I\" a. m, = lim mm ACTIVITIES A. Find the slope and equation of the tangent line to the graph of the equation at a given paint. 1. yzh:l +41 at point (-10] 2. y=2x3+3 at point {1,5} 3. yzg-xl at 1:22 POSTTEST Direction: Choose the letter that corresponds to the correct answer. 1. Which of the following refers to a line that intersects the graph at exactly one point? a. secant b. tangent 2. Which of the following is the formula in finding the slope of a tangent line at a given point ? a. m, = lim/ (Xo +Ax)-f(x.) b. m, = lim f(x+ Ar)- f(x. ) Ar-0 Ax AT-40 XO 3. At what point the graph intersect g(x) =x +2 at x=2? a. 4 b. 6 4. What is the slope of g(x) = x +2 at x=2? a. 4 b. 2 5. What is the equation of the line of g(x)=x-+2 at x=2? a. y =4x-2 b. y=4x-14Find the derivative of the following functions. 1. y = x4 - 2x2 - 4x +4 3 + IH 2. y = 2x4 + 4x 3. y = Vx2+4 4. y = (x3 +2) (x2 - x+3)