Knowledge Check Question 17 For each equation, determine whether it shows a direct variation (that is,...
For each equation, determine whether it shows a direct variation (that is, shows directly proportional variables). If it does, find the constant of variation and write it in simplest form. - 8x = 5y + 7 D Direct variation Not direct variation 2y 6x o Direct variation O Not direct variation
Knowledge Check The table of ordered pairs (x, y) gives an exponential function. Write an equation for the function. x y -1 6 0 12 1 1 24 2. 48 88 O х ? I Don't Know Submit
Direct Variation
④ For each function , determine whether L varies directly with x. If so, find the consfant of variation write function rule 식- 2 14 3 19 2719 535 7142 -0 1-2 91ろ 2. ル132 5 1 20 & O Which funchion besteesents the relationship between the quanhthes in the table ? 2. 28 미:4 30 20 ② If y varies directly with x, and y-ig when x:1 which of the follewing repre sents this situation? Determine whether...
Given the ordered pairs (5, 12), (10,6), and (15,4), determine whether the variation model represented by the ordered pairs (x, y) is of the form y = kx or k and find k. Then write a model that relates y and X. y = X A y = 5 x OB) y = 2x OC) y = 5 x OD) y = 413 OE) y = 1215 OF) y = 60
Question 26 = Knowledge Check Find the equation of the quadratic function f whose graph is shown below. 10- 8 8 (7.3) ? X (s. 5) Don't know Submit 2020 Meducation Alages en oo е е Type here to search (hp ho 19
To UMOWw26urt twowilgoce Objective Knowledge Check Question 17 The first five ionization energies (IE, through IE,) of a Period 2 element have the following pattern: kJ/mol IE, IE, IE; IE4 IES Make a reasonable guess about which element this is. Enter its chemical symbol below. X 5 ? I Don't Know Submit 2010 Mo dica Type here to search
Objective knowledge Check Question 4 For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave Sunchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change AS AS < 0 SO A few grams of quid ammonia (H) The ammonia evaporates at a constant temperature...
= Objective Knowledge Check Question 21 Ammonia and oxygen react to form nitrogen and water, like this: 4 NH3(9)+30 (9) — 2N2(9)+6H2O(9) Use this chemical equation to answer the questions in the table below. Suppose 170. mmol of NH, and 128. mmol of o, are added to an empty flask. How much N, will be in the flask at equilibrium? Suppose 125. mmol of N, and 375. mmol of H20 are added to an empty flask. How much NH, will...
For the polynomial below, 3 is a zero. g(x) = x3 + 3x2 – 5x - 39 Express g (x) as a product of linear factors. 8(x) = 0 x 5 ? Find all other zeros of P(x) = x + x + 4x + 30, given that 1 – 3i is a zero. (If there is more than one zero, separate them with commas.) x 6 ? The figure below shows the graph of a rational function f. It...
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The reduced row echelon form of a system of linear equations is given. Write the system of equations corresponding to the given matrix. Use x and y as variables. Determine whether the system is consistent or inconsistent. If it is consistent, give the solution 10 -5 0 1 8 What equation does the first row represent? x= -5 (Type an equation.) What equation does the second row represent? y =...