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Giana Sosa
Mathematics
10 January, 06:43
What is the answer of (1, 9); slope 4 on a graph?
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Lindsey Wiggins
10 January, 06:49
0
y=4x+5
Step-by-step explanation:
Slope intercept form is y=mx+b. m is slope and b is the y-intercept. The first thing you need to do is substitute the numbers you have into the equation: 9=4 (1) + b.
Then you simplify: 9=4+b.
Now you need to figure out b. Ask yourself, what plus 4 equals 9? The answer is 5.
Next, you take the numbers for x and y out of the equation and replace them with letters: y=4x+5. That's your answer.
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Lila Vazquez
10 January, 07:12
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y = 4x + 5
Step-by-step explanation:
The equation of a line in slope - intercept form is
y = mx + c (m is the slope and c the y - intercept)
Here m = 4, thus
y = 4x + c ← is the partial equation
To find c substitute (1, 9) into the partial equation
9 = 4 + c ⇒ c = 9 - 4 = 5
y = 4x + 5 ← equation of line
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