What is the slope if the secant line of the function #y = 4x^2 – 2x + 1# between x = 3 and x = 6?
1 Answer
Aug 18, 2017
Explanation:
#"the slope of the secant line is"#
#•color(white)(x)m=(f(6)-f(3))/(6-3)#
#"that is "" difference in y"/"difference in x"" between the 2 points"#
#f(6)=4(6)^2-2(6)+1#
#color(white)(xxx)=144-12+1#
#color(white)(xxx)=133#
#f(3)=4(3)^2-2(3)+1#
#color(white)(xxx)=36-6+1#
#color(white)(xxx)=31#
#rArrm=(133-31)/3=102/3=34#
