114. Emily is selling candy bars for $1.50 each. The function = 1.5x gives the total amount of money Emily f(x) makes after selling candy bars. Give the domain and range for this function. x Domain: ______________Range: ___________ Learning Target: Using Intercepts Find the and x- y-intercepts. 115. 116. 117. + 2y = 118. 7x 4y = 28 –4x –16 – _____ _____ _____ _____ _____ _____ _____ x-int: y-int: x-int: y-int: x-int: y-int: x-int: y-int: ____ Graph the equation. Label the points where the line crosses the axes. 119. 5x 2y = 120. 4y = 121. + 4y = 12 – –20 –2x – –8 –3x _____ _____ _____ _____ _____ _____ x-int: y-int: x-int: y-int: x-int: y-int: Learning Target: Rate of Change and Slope 122. The table shows the average cost per gallon of gasoline. Find the rates of change for each time period. 1995 2000 2001 2003 2007 Year 1995-2000: ________ 2000-2001: ________ Cost ($) 1.35 1.55 1.20 1.90 2.70 2001-2003: ________ 2003-2008: ________ During which time interval did the cost per gallon increase at the greatest rate? Tell whether the slope of the line is or Then find the slope of each line. positive, negative, zero, undefined. 123. 124. 125. positive/negative/zero/undefined positive/negative/zero/undefined positive/negative/zero/undefined
114. Emily is selling candy bars for $1.50 each. The function f(x) = 1.5x gives the total amount of money Emily makes after selling x candy bars. Give the domain and range for this function. Domain: ______________Range: ___________ Learning Target: Using Intercepts Find the x- and y-intercepts. 115. 116. 117. –4x + 2y = –16 118. 7x – 4y = 28 x-int: _____ y-int: _____ x-int: _____ y-int: _____ x-int: _____ y-int: _____ x-int: _____ y-int: ____ Graph the equation. Label the points where the line crosses the axes. 119. 5x – 2y = –20 120. –2x – 4y = –8 121. –3x + 4y = 12 x-int: _____ y-int: _____ x-int: _____ y-int: _____ x-int: _____ y-int: _____ Learning Target: Rate of Change and Slope 122. The table shows the average cost per gallon of gasoline. Find the rates of change for each time period. Year 1995 2000 2001 2003 2007 Cost ($) 1.35 1.55 1.20 1.90 2.70 1995-2000: ________ 2000-2001: ________ 2001-2003: ________ 2003-2008: ________ During which time interval did the cost per gallon increase at the greatest rate? Tell whether the slope of the line is positive, negative, zero, or undefined. Then find the slope of each line. 123. 124. 125. positive/negative/zero/undefined positive/negative/zero/undefined positive/negative/zero/undefined
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