Question

Match the functions to their ranges when the domain is {1, 2}. f(x) = 3x + 5 f(x) = x2 – 2x – 5 f(x) = (x + 5)x2 f(x) = 4 – x {-6, ­-5} arrowRight {8, 11} arrowRight {3, 2} arrowRight {6, 28} arrowRight

Answer 1

Answer:

• 3x +5 ⇒ (8, 11)
• x²-2x-5 ⇒ (-6, -5)
• (x+5)x² ⇒ (6, 28)
• 4-x ⇒ (3, 2)

Step-by-step explanation:

Evaluate each function for x=1. This result will let you select the correct answer choice for each function.

To check your result, you can evaluate each function for x=2. You should get the same answer choice in each case.

I find it convenient to let a calculator do the tedious work.

Answer 2

Answer:Given below

Step-by-step explanation:

$\left ( a\right )$

$F\left ( x\right )=3x+5$

for x=1$F\left (1\right )=8$

$x=2 F\left ( 2\right )$

and domain is {1,2}

range{8,11}

$\left ( b\right )$

$F\left ( x\right )=x^2-2x-5$

for x=1 $F\left (1\right )=-6$

x=2$F\left ( 2\right )=-5$

range{-6,-5}

$\left ( c\right )$

$F\left ( x\right )=x^2\left ( x+5\right )$

for x=1 $F\left (1\right )=6$

for x=2$F\left (2\right )=28$

Range{6,28}

$\left ( d\right )$

$F\left ( x\right )=4-x$

for x=1 $F\left (1\right )=3$

for x=2 $F\left (2\right )=2$

range {2,3}