Quiz about Evaluating Functions: Expression

Question 1

$$h\left(n\right)=\ n^2-2;\ Find\ h\left(-2n\right)$$

Accepted Answer

$$4n^2-2$$

Answer

$$9n^2-2$$

Answer

$$n^2-2$$

Answer

$$2+4n+n^2$$

Question 2

$$f\left(x\right)=3x-2;\ Find\ f\left(x-1\right)$$

Accepted Answer

$$3x-5$$

Answer

$$3x-8$$

Answer

$$3x^2-2$$

Answer

$$-2+\frac{3}{2}x$$

Question 3

$$k\left(n\right)=3n^2-1-2n$$ Find $$k\left(n+4\right)$$

Accepted Answer

$$3n^2+22n+39$$

Answer

$$3n^4-1\ -2n$$

Answer

$$-1-n+\frac{3}{4}n^2$$

Answer

$$\frac{1}{3}n^2-\frac{2}{3}n-1$$

Question 4

$$h\left(x\right)=x^2-5x;\ Find\ h\left(x^2\right)$$

Accepted Answer

$$x^4-5x^2$$

Answer

$$-4+3x+x^2$$

Answer

$$x^2-3x-4$$

Answer

$$x^2+5x$$

Question 5

$$x^2+1;\ Find\ f\left(4x\right)$$

Accepted Answer

$$16x^2+1$$

Answer

$$x^4+1$$

Answer

$$1+\frac{1}{4}x^2$$

Answer

$$5+4x+x^2$$

Question 6

$$p\left(x\right)=-2x+3;\ Find\ p\left(-2+x\right)$$

Accepted Answer

$$7-2x$$

Answer

$$9+2x$$

Answer

$$-2x+11$$

Answer

$$8x+3$$

Question 7

$$g\left(n\right)=n^3-5;\ Find\ g\left(n+4\right)$$

Accepted Answer

$$n^3+12n^2+48n+59$$

Answer

$$-6-3n-3n^2-n^3$$

Answer

$$n^6-5$$

Answer

$$n^3-9n^2+27n-32$$

Question 8

$$g\left(x\right)=x+2;\ Find\ g\left(x^2\right)$$

Accepted Answer

$$x^2+2$$

Answer

$$4x+2$$

Answer

$$3x+2$$

Answer

$$2x+2$$

Question 9

$$g\left(x\right)=x^3+5;\ Find\ g\left(x^2\right)$$

Accepted Answer

$$x^6+5$$

Answer

$$27x^3+5$$

Answer

$$32-27x+9x^2-x^3$$

Answer

$$8x^3+5$$

Question 10

$$f\left(t\right)=t-5;\ Find\ f\left(-2t\right)$$

Accepted Answer

$$-2t-5$$

Answer

$$-3-t$$

Answer

$$-5+\frac{1}{2}t$$

Answer

$$t-3$$

Question 11

$$g\left(x\right)=x^2-3x;\ Find\ g\left(3+x\right)$$

Accepted Answer

$$3x+x^2$$

Answer

$$9x^2+9x$$

Answer

$$16x^2-12x$$

Answer

$$\frac{1}{4}x^2-\frac{3}{2}x$$

Question 12

$$f\left(t\right)=t^3-4;\ Find\ f\left(2n\right)$$

Accepted Answer

$$8n^3-4$$

Answer

$$-n^3-4$$

Answer

$$-4+\frac{1}{64}n^3$$

Answer

$$27n^3-4$$

Question 13

$$g\left(t\right)=3t^2+5t;\ Find\ g\left(t+2\right)$$

Accepted Answer

$$3t^2+17t+22$$

Answer

$$3t^2-7t+2$$

Answer

$$12-13t+3t^2$$

Answer

$$\frac{3}{4}t^2+\frac{5}{2}t$$

Question 14

$$h\left(x\right)=x^2-3+2x;\ Find\ h\left(-3x\right)$$

Accepted Answer

$$9x^2-3-6x$$

Answer

$$4x^2-3-4x$$

Answer

$$4x^3-3+4x$$

Answer

$$x^2-2x-3$$

Question 15

$$h\left(x\right)=3x-5;\ Find\ h\left(\frac{x}{2}\right)$$

Accepted Answer

$$-5+\frac{3}{2}x$$

Answer

$$12x-5$$

Answer

$$6x-5$$

Answer

$$3x+7$$

Question 16

$$f\left(t\right)=-3t^3-3t;\ Find\ f\left(-4x\right)$$

Accepted Answer

$$192x^3+12x$$

Answer

$$24x^3+6x$$

Answer

$$-3x^3+18x^2-39x+30$$

Answer

$$-x-\frac{1}{9}x^3$$

Question 17

$$w\left(x\right)=2x^3+2;\ Find\ w\left(x^2\right)$$

Accepted Answer

$$2x^6+2$$

Answer

$$-6x-6x^2-2x^3$$

Answer

$$54x^3+2$$

Answer

$$16x^3+2$$

Question 18

$$g\left(x\right)=x+4;\ Find\ g\left(\frac{x}{3}\right)$$

Accepted Answer

$$4+\frac{1}{3}x$$

Answer

$$2x+4$$

Answer

$$x^2+4$$

Answer

$$x+1$$

Question 19

$$f\left(n\right)=3n-1;\ Find\ f\left(3n\right)$$

Accepted Answer

$$9n-1$$

Answer

$$3n^2-1$$

Answer

$$-3n-1$$

Answer

$$n-1$$

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