Question

1. Oscar entered y=−0.4^x+3 into an online graphing tool.

Answer 1

___Brainliest if helped

1.He plotted y= -(0.4^x)+3 
He did not bracket properly so this is the graph. 

2.
C. The graph decreases from left to right.
D. The point ​ (4, 1.72) ​ is on the graph.
E. The graph has a y-intercept only.

D. Quadrants I and IV only 
Imagine a J shape from quad 4 extend to quad 1. 

Answer 2

Answer:

1.  y = -(0.4^x)+3 

2. C and E

3. D

Step-by-step explanation:

1.  y = -(0.4^x)+3 

Exponentials goes first, so the first operation is 0.4^x; then goes multiplication, that means the next operation is (-1)*(0.4^x); and finally goes the addition

2. y-intercept: (0, 2.4)

slope: -0.08

function: y = -0.08*x + 2.4

where y  is the price and x  are the weeks

C. The graph decreases from left to right. -> negative slope

E. The graph has a y-intercept only. -> all equations of a line has only one y-intercept

3. D. Quadrants I and IV only 

y-variable starts at a negative value and x-variable can only assume values greater than zero