10-09-2014
Mathematics

Answered

for the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Answer :

10-09-2014

[tex]f(x)=3x^2-2x+5\\\\ f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\ f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\ f(-2)\ \ Substitude\ x=-2\\ f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\ f(a)\ \ substitude\ x=a\\ f(a)=\underline{3a^2-2a+5}[/tex]

Answer Link

Other Questions

Lesson 2 SummarySuppose your class is planning a trip to a museum. The cost of admission is [tex]$\$[/tex]7[tex]$ per person, and the cost of renting a bus for

Select the correct answer.Regina has \[tex]$500 in a savings account. She wants to purchase a washer and dryer set for \$[/tex]1,600, and she takes out an inter

Further, the content in this module will help you achieve the following learning objectives: Discuss the strategies used to conduct systematic searches on PICO

A pet lizard and its shelter must be kept warm. What type of electromagnetic waves would most likely be used?A. gamma raysB. infrared lightC. ultraviolet lightD

Select the correct answer.Points [tex]$A$[/tex] and [tex]$B$[/tex] lie on a circle centered at point [tex]$O$[/tex]. If [tex]$OA = 5$[/tex] and [tex]\(\frac{\te

Elias purchases a home for [tex]$\$[/tex]38,900[tex]$. The value of the home, in thousands of dollars, since his purchase is shown in the table. \begin{tabular

Multiply:[tex]\[ \frac{2y}{3x} \cdot \frac{9x^3y^2}{10y} \][/tex]Simplify your answer as much as possible.

which three things could he list to improve

When creating a budget, log fixed expenses:A. before income.B. after income.C. after savings.D. at the top.

Review the proof.[tex]\[ \begin{array}{|c|c|} \hline \text{Step} & \text{Statement} \\ \hline 1 & \cos^2\left(\frac{x}{2}\right) = \frac{\sin(x) + \tan(

What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?

Mini-Project: Cents and the Central Limit Theorem 1. Collect a sample of at least 50 pennies by setting aside all the pennies you receive in change for severa

What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7

how do you write 4540 million in standard form?

what's another word for over thinking?

how do you write 4540 million in standard form?

how were north american colonies all similar in the 1700s?

in the number 13,407.036 there are two 3's. Explain how the values of the 3's are related.

What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?

how do you write 4540 million in standard form?