Point-Slope Form

l. (3) Find the pointnslope form of the equation of the line that passes through the points (1, 3) and (2, 5). (h) Fin the slopeintercept form of the equation of the line that passes through the points (1,3) and (2, 5). 2. True or false? 3:2 + '92 = 1 is a flmction. Justify your answer. 3. (3) Find the domain of the graph below. (b) Find the range of the graph below. (0) Find the intervals on which the graph below is decreasing. ((1) Find the intervals on which the graph helow is increasing. (e) Find each local minimum of the graph below. (f) Find each local maximum of the graph below. , 5. [-11 Points] DETAILS SPRECALC7 1.10.020.M|. MY NOTES | ASK YOL Find an equation for the line whose graph is sketched. B. [011 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 1.10.034.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find an equation of the line that satisfies the given conditions. X-intercept 8; y-intercept 4 y:x2+4xi32 X Need Help? __' _' 9. [-l1 Points] DETAILS SPRECALC7 1.10.040. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find an equation of the line that satisfies the given conditions. Through (3, 1); perpendicular to the line y = ix + 9 3 12. [-I1 Points] DETAILS SPRECALC7 1.10.088. MY NOTES ASK YOUR TEACHER PRAC If the recommended adult dosage for a drug is D (in mg), then to determine the appropriate dosage c for a child of age a, pharmacists use the equation c = 0.0417D(a + 1). Suppose the dosage for an adult is 400 mg. (a) Find the slope. l:l What does it represent? 0 the increase in dosage for each one-year increase in the child's age 0 the difference between an adult's dosage and a newborn's dosage O the maximum dosage for an adult 0 the increase in dosage for each one-month increase in the child's age 0 the maximum difference between an adult's dosage and a newborn's dosage (b) What is the dosage for a newborn? l:lm9