Question

If g(x) = .5x + 3, find the value of g(0) + 2.
A. 5
B. 4
C. 5.5
D. 7

Answer 1

g(0) = .5 (0) + 3 = 3

g(0) + 2 = 3 + 2 = 5

Answer 2

What is the slope of the line passing through (0,3) and (4,5)?
A. 0.5
B. 2
C. -2
D. -0.5

Answer 3

Cna u answer this for me too?

Answer 4

A

Answer 5

Skylark joined a karate class. She paid $30 to join plus $25 per lesson. What is the rate in this problem?
A. total cost
B. original payment of $30
C. $25 per lesson

Answer 6

What about this one

Answer 7

The rate (gradient) is C

Answer 8

The rate is $25 per lesson

Answer 9

What is the correlation between the two quantities?

The energy bill for running an airconditioner and the temperature outside.
A. Positive
B. Negative
C. No correlation

Answer 10

wat about this one?

Answer 11

The hotter it is outside. The more likely you are to use an air conditioner.
Therefore if one thing increases whilst the other increases. The correlation would be positive.

Answer 12

Under water, pressure increases 4.3 pounds per square inch (psi) for every 10 feet you descend. This is represented by the equation p = 0.43d + 14.7, where p is the psi and d is the depth in ft. Find the pressure at 200 feet.
A. 215.13 psi
B. 860 psi
C. 100.7 psi

Answer 13

Can you replace d with = 200?

Answer 14

yes

Answer 15

That should give you p

Answer 16

okay is the answer be C?

Answer 17

That's what I got. Good for you. (Note: no exclamation points)

Answer 18

lol i see tht. thnk u!! :)

Answer 19

Determine if the following is always, sometimes, or never true.

y = -1/5 x + 3 is a function.
A. Always
B. Sometimes
C. Never

Answer 20

A function means that you never get two ordered pairs with the same x value. For example you could not have (3,7) and (5,7) in a function.

Answer 21

So you look at you equation and think: Will any x value give me two y values? or will each x give me only 1 y value?

Answer 22

And another way to think of it is to think of its graph. Do you know that the graph of that equation will be a line?

Answer 23

So will it be B?

Answer 24

No. It is a line so it passes the vertical line test and will always be a function.

Answer 25

Oh idk how to do these very well.

Answer 26

Do you know that the graph of that equation will be a line?

Answer 27

....Um.... no.

Answer 28

y=mx+b is a line. Just like the other question you just posted. m is the slope and b is the y intercept.

Answer 29

oh okay