Please ignore my work and show step by step for number 9 please and thank you
1 answer:
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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:
You will need 6 cups of sugar.
Step - by - Step Explanation
What to find? <em>The number of cups of sugar needed to make a cake with 12 cups of flour.</em>
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Given:
Cups of flours = 4
Cups of sugar = 2
Cups of flour =12
Let x be the number of cups of sugar needed to make a cake with 12 cups of flour.
Using proportion;
4 cups of flour = 2 cups of sugar
12 cups of flour = x
Cross - multiply
4x = 24
Divide both-side of the equation by 4
x =6
Hence, you will need 6 cups of sugar.