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McGraw Hill Glencoe Algebra 2, 2012 View details

Mid-Chapter Quiz

Finish the assignment

Continue to next subchapter

Exercise 5 Page 91

Substitute 1.4 for each value of x.

12.432

Practice makes perfect

Using the function f(x), we want to evaluate for the given value, f( 1.4). To do this, we need to substitute 1.4 for x in each instance of the x-variable. Let's take care of the substitution.

f(x)=3x^3-2x+7

Substitute

x= 1.4

f( 1.4)=3( 1.4)^3-2( 1.4)+7

CalcPow

Calculate power

f(1.4)=3(2.744)-2(1.4)+7

UseCalc

Use a calculator

f(1.4)=8.232-2(1.4)+7

Multiply

f(1.4)=8.232-2.8+7