Question

16. Graph the linear function: y=−2x+4

Then answer:
a) Slope
b) y-intercept
c) Increasing or decreasing?
d) Two additional points on the line

1 point

17. Interpreting Linear Graphs (Multiple Choice)

A line passes through (0, 5) and (4, 7). Which equation represents the line?

1 point

y=​1/2x+5

y=1/2​x−5

y=2x+5

y=−2x+5

18. Identify the exponential graph (MC):

Which graph represents an exponential function?

1 point

Upward-slanting line

Curve increasing slowly, then rapidly

Downward-slanting line

Horizontal line

19. Analyze the ordered pairs:


(0,5) (1,10) (2,20) (3,40)


Is this an example of a linear or exponential function?

1 point

21. Exponential decay interpretation

A graph shows values doubling with each step of x.

Is this an example of growth or decay?

Answer 1

16.
- Graph: line through (0, 4) with slope −2 (down 2 for each +1 in x).
a) Slope: −2
b) y-intercept: 4 (point (0,4))
c) Decreasing (negative slope)
d) Two additional points: (1, 2) and (2, 0) (also e.g. (−1, 6))

17.
y = (1/2)x + 5

18.
Curve increasing slowly, then rapidly (exponential growth)

19.
Exponential function (values double each step)

21.
Growth (doubling each step is exponential growth)