Write the letter of the term that best describes each example or description.
a. onto function
1.f(x)=x2-6
2. d = {-2, 4), r= {3, 4, 7}
3. f(x) = (4x+31
b, independent variable
c. dependent variable
4. the type of relation defined by the function
y = -5x + 10.
d. discrete relation
e. quadratic function
5. d= (-3,-2), r = {1}
f. piecewise-linear function
6. the f(x) in f(x) = [[x] + 1.
7. the x in y=-2(x + 3) + 5.
g. continuous relation
h. absolute value function
8. f(x)= 2- x if x = 0
x
+ 3 if x <
0
i. one-to-one function
lj. rate of change
10. the type of relation defined by the points
(0, 4), (2, 5), (3, 3).

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

may i see the picture? it would a lot, xox

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional