Question

Can someone solve both of these?

Answer 1

4. A. y = -3x - 2

5. B. ¹/₃

Explanation:

General form of a linear equation: y = mx + b

(where m is the slope and b is the y-intercept)

Question 4

From inspection of the graph, the y-intercept is at y = -2

The slope is the change in y divided by the change in x, so we can see that for every change of 1 x-value, the y-value decreases by 3 units.

Therefore, the slope is -3

So the equation of the line is y = -3x - 2

Question 5

Referring to the general form of the linear equation quoted above,

for equation y = ¹/₃x + 4

• slope = ¹/₃
• y-intercept = 4