SavannahP04
14.07.2019 •
Mathematics
[algebra 1] graph the line with slope -3/4 passing through the point (-3,-3). *will give brainliest answer to the one who gave a full explanation with shown work.
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Ответ:
Slope formula is y=mx+b. m is the slope and b is the y-intercept. You can plug the coordinates that are given, (-3,-3), to find the y-intercept.
y=-3/4x+b is the equation you have so far. Plug in (-3,-3):
-3=-3/4(-3)+b
Multiply -3/4*-3.
-3=9/4+b
Subtract 9/4 from both sides.
-21/4=b
Equation: y=-3/4x-21/4
-21/4 equals -5.25, so your y-intercept would be (0,-5.25). That is the first point that you can plot on your graph.
After this, to graph the rest of the equation, you need to use your slope, -3/4. Every point will be down 3, right 4 from the one before it. In this case, your next point to graph would be (4,-8.25). You can also find what the coordinates would be in the opposite direction by going up 3, and left 4 from the original y-intercept. In this case, the coordinates would be (-4, -2.25)
Graph the points: (0,-5.25), (4,-8.25), and (-4, -2.25). Connect all the points to form your line. Normally, graphing two or three points should be enough!
I hope this helps :)
Ответ:
A) ∠BEI ≅ ∠CEH because vertical angles are congruent; rotate ΔCEH 180° around point E, then translate point C to point B to confirm∠IBE ≅ HCE.