Question 3 (2 points) (07.06)

What statement correctly describes the key features of the graph of f(x) = −3( one third )x + 1 − 2? (2 points)

a
Y-intercept of (0, −3), starts down on the left, gets closer to y = −2 on the right

b
Y-intercept of (0, −3), starts up on the left, gets closer to y = −2 on the right

c
Y-intercept of (0, 2), starts down on the left, gets closer to y = −1 on the right

d
Y-intercept of (0, 2), starts up on the left, gets closer to y = −1 on the right

b

Step-by-step explanation:

the answer is A

Step-by-step explanation:

We are given the function,

Now, we know,

'Y-intercept is the point when the graph crosses the y-axis i.e. when x = 0'.

So, we have,

i.e.

i.e.

i.e. f(0)= -3

So, the y-intercept is (0,-3).

Thus, options C and D are not correct.

Moreover, from the figure below, we see that,

The graph starts down on the left and goes closer to y= -2 on the right.

Hence, option A is correct.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".