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Sagot :
Answer: Choice D
Explanation:
I'll use the point-slope form to get the following
[tex]y - y_1 = m(x - x_1)\\\\y - 1 = \frac{3}{4}(x - (-4))\\\\y - 1 = \frac{3}{4}(x + 4)\\\\y - 1 = \frac{3}{4}x + \frac{3}{4}*4\\\\y - 1 = \frac{3}{4}x + 3\\\\y = \frac{3}{4}x + 3 + 1\\\\y = \frac{3}{4}x + 4 \ \ \text{... matches with choice D}\\\\[/tex]
You should find that plugging x = -4 into equation D will lead to y = 1 as a way to confirm the answer.
Answer:
D
Step-by-step explanation:
m = 3/4
point: (-4, 1)
We can use the slope-intercept form. We know one point, so we can use its coordinates for x and y. We also know the slope, so we use the slope for m. Then we solve for b.
y = mx + b
Substitute m with the slope.
y = (3/4)x + b
Use the x-coordinate of the given point for x and the y-coordinate of the given point for y.
1 = (3/4)(-4) + b
Solve for b.
1 = -3 + b
b = 4
Now that we know the value of b, we can write the equation of the line.
y = mx + b; m = 3/4; b = 4
y = 3/4 x + 4
Answer: D
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