State the slope and the y-intercept for the graph of each equation.
1 answer:
Slope and y-intercept section:
<em>2. y=2x-2</em>
<em>Slope: 2</em>
<em>Y-intercept: -2</em>
<em>4. y=-x+3</em>
<em>Slope: -1</em>
<em>Y-intercept: 3</em>
<em>6. y=-1/3x+4</em>
<em>Slope: -1/3 (negative one third)</em>
<em>Y-intercept: 4</em>
<em>8. y+4x=2</em>
<em>Slope: -4</em>
<em>Y-intercept: 2</em>
Graphing section:
<em>y=mx+b where m = slope and b = y intercept</em>
<em>10. Graph a line with the slope of 1 and y-intercept of -4</em>
<em>slope form: y=1x+-4 </em>
<em>(first picture)</em>
<em>12. Graph a line with a slope of 1/3 and a y-intercept of 1.</em>
<em>slope form: y=1/3x+1</em>
<em>(second picture)</em>
<em>14. Graph y=3x-3</em>
<em>(third picture)</em>
<em>16. Graph y=4x-2</em>
<em>(fourth picture)</em>
<em>18. Graph y=2/3x-3</em>
<em>(fifth picture)</em>
Hope this helps! Please don't hesitate to ask any questions.
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Answer:
The original number was 54.5.
Step-by-step explanation:
If a number is increased by 2.8%, then it is 102.8% of it's original number.
In mathematics, "of" in virtually all cases means "multiplied by".
Therefore, we do the opposite:
1. Convert to a decimal.
102.8% = 1.028
2. Divide by the decimal.
3. Round it to the nearest tenth.
54.47 rounds to 54.5.