Question

Part A: fill in the blue boxes to complete the equation

3 Lila planted a tree in her backyard. She made this graph to show the tree growth
over 5 years.
Part A
Complete the equation to correctly show how to find the slope for the function
shown in the graph.

Answer 1

• y = 3x + 5
• Slope = 3, y-intercept = 5

Explanation:

Refer to attachment

Slope-intercept form is

• y = mx + b

y-intercept is 5 as per point (0, 5)

Using 2 of the points on the graph we can find the slope: (0, 5), and (1, 8)

• m = (y2 - y1)/(x2 - x1)
• m = (8 - 5)/(1 - 0) = 3/1 = 3

So the equation is:

• y = 3x + 5