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4 votes
Can anyone help pls?

1. How do you find rate of change using a graph?
2. Simone claims the initial value and y-intercept are the same thing on a graph. Is she correct?
3. If you know that a line has a slope of 2/3 and a y-intercept of 7, what is the equation for that line in slope-
intercept form?

User Yochanan
by
5.1k points

1 Answer

4 votes

Explanation:

1)Table can be used to find the rate of change and the initial values

x ------> y

0 -------> 3

1 ------> 5

2 ------> 7

Rate of change (Slope) = changeiny/changeinx

=7-5/2-1

= 2/1 = 2

Rate of change = 2

Y intercept is the point where x=0

So y = 3 from the table.

2)

yeah she is

in y = m*x + b

b is the initial value or the y-intercept.

3)slope = 2/3 and a y-intercept = 7

Equation of a line y= mx + b

Where m is the slope and b is the y intercept

Replace slope m and y intercept

m= 2/3, b= 7

Equation of a line : y = 2/3 x + 7

User Keramat
by
5.6k points
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