Choose the student who correctly used substitution to determine if 19 was a solution to the equation. Mara's work Juan's work Ac
acia's work Hector's work
2 answers:
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Answer:
m = -1
b = 5
Step-by-step explanation:
Hello!
Slope - Intercept Form:
- m = slope
- b = y-intercept
The slope of the line is the rate of change, or how the graph changes in y as it changes in x.
Slope can be calculated by the formula:
We need two points on the line to get the x and y-values. I'm going to choose points (0,5) and (4,-3).
Calculate Slope
The slope is -2.
<h3>Y-intercept</h3>The y-intercept of the line is where the graph touches the y-axis (x = 0). It can be found by looking at the intersection of the graph and the axis.
The intersection happens at point (0,5), so the y-intercept is 5.
<h3>Equation</h3>We found m, the slope, to be -2 and b, the y-intercept, to be 5. We can just plug it into the equation format.
Equation:
Answer:
100%
Step-by-step explanation:
An exponential equation with a growth rate can be expressed as: where r is a positive number, and represents the growth rate.
In this case since the base of the exponent equals 2, that means r=1, since 1+1=2. This means it has a growth rate of 100%, which makes sense, since the base is 2, meaning it doubles or increases by 100% every time x increases by 1.