國際學校一次函數(shù)的測試卷(英文)

1、Unit Two Test PaperName:Score:Choose:( 36 )lx What is the slope of a line passing through (2, 2) and (3, 5)?().A. -3B.5C.3D.-32、A function is:( ).A. a graph that has only one output per input B.a graph that has only one input per outputC.a graph that has multiple domain values D.a graph that has mul

2、tiple range values3、Which of the following represents a linear equation that begins at 5 and increases by 8 at each step?( )A. y=8x + 5B.5x+y=8C.y=-5x+8D.y=5x + 84、Which statement about the given equation is NOT true?3x+4y=12().At is in slope-intercept form with a positive slope of 的.B. lt is an exa

3、mple of a linear equationCt has two variables and has coefficients of 3 and 4.D.lt represents a line which, when graphed, doesn't pass through the origin.5、The definition of slope is:()A. the rate of change of a linear equationB.rise over runC. the vertical change over the horizontal change of a

4、 line D All of the Above6、Given the table below, which lists some of the values of the function f(x)f(x), which of the following is true, and why?( )Xf(x)0-42248614820A. f(x) is linear, because the differenee of y-values over equal intervals is constant.B. f(x) is linear, because the differenee of x

5、-values is constantly 2 units.C. f(x) is exp on ential, because the ratio of y-values over equal intervals is constant Dt can not be determined whether f(x) is linear or exponential, because there are no intervals of only one unit in the table7、What statement about slope-intercept form is INCORRECT?

6、( ).A. the m represents the slopeB. the y represents the y-interceptC. the x represe nts the in putD. None of the above8、The domai no fa graph is:().A.all of the possible x values B.all of the possible y valuesC.a set of coordinates that create a function D.a set of coordinates do not create a funct

7、ion9、What is the slope when the rise is -40 and the run is 20?D-2A.-8B.-12C.-510、Find the slope and y-intercept of this equation. y=3x_l().A.m=3 yint=5B.m=7 y-int=l C.m=21 y-int=9D.m=3 y-int=-l11、What is the slope of this line?().A.PositiveB.NegativeC.Zero12、How are the lines y=-2x-4y=-2x-4 and y=12

8、xy=12x best classified?( ).A.ParallelB.Perpe ndicularC.NeitherD.Both13、What is the Y-INTERCEPT of 4x+10=-2y?(A.10B.5C. -2.5D.-514、What is the equation of the line with a slope of 3 through (-1, 4)?(A.y + 4 = 3(x + 1)B.y-4 = 3(x + 1)c.y-4 = 3(x-1)D.y + 4 = 3(x -1)15、What kind of line has an undefined

9、 slope?(A.PositiveB.Horiz ontalC.VerticalD.Negative16、Which one is functionfB17、Point(/72 +1,-3) must be in ()A. First quadra ntB. Sec ond quadra ntC. Third quadra ntD. Fourth quadra nt18、If linear function y = mx+b passes through first third fourth quadrant som.b is (C. /7/<0,Z?>0D2 <0, &l

10、t;0Short Answer Questions:Find the equation of the line passing through the points (-3,2) and (1,8).( 3 * )State whether each is a function. ( 3')153164812(8, 9)Q 20)(8, 5)(8, 6)Graph the linear equation Identify the x-intercept. ( 6')l)y = -x -32)-3x + y = 9The diagonal of the rhombus is 24

11、 m and 10 m. find the perimeter.( 5')A ladder 8.5 m long rests against a vertical wall with its foot 4 m away from the wall. How high up the wall the ladder reach?( 5')The base of an isosceles triangle is 24 cm and the two equal sides are 37 cm each Find the altitudeAD of the triangle.( 5')Please fill out the missing graph in the table(8')y=mx±b Graphb>0b<0m<0A line on the Cartesian plane is parallel to the line and passes t