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MariettaO [177]
3 years ago
11

(4,-2) m=-1 how can you graph this

Mathematics
2 answers:
Svet_ta [14]3 years ago
5 0
Ok, so assuming you know what the slope of -1 looks like

a bit like \ except more diagonal

you look for point (4,-2), then you draw the -1 slope from it

it should cross through points (5,-3) and (3,-1)
ValentinkaMS [17]3 years ago
4 0
Ok, so -1 is m. This is related to point-slope form, y=mx+b. In this formula, m is the slope of the line. You also found a point (4,-2). This means that this is a definite point on the graph. So, place this point on the graph at x=4 and y=-2. Then, because the slope is -1, go left 1 up 1 and then right 1 down 1 from this point and it will give you the graph of this equation. The graph will look like this. Notice it passes through the point (4,-2). Hope this helps! :D

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We have been given that Wally wants to determine the height of a statue that casts a 164-inch shadow by comparing it to his own height and shadow length. Wally is 68 inches tall, casts a shadow that is 41 inches in length.

We will use proportions to solve for the height of the statue because proportions state that ratio between two proportional quantities is same.

\frac{\text{Height of statue}}{\text{Shadow of statue}}=\frac{\text{Height of Wally}}{\text{Shadow of Wally}}

Upon substituting our given values in above equation, we will get:

\frac{\text{Height of statue}}{\text{164 cm}}=\frac{\text{68 inch}}{\text{41 inch}}

\frac{\text{Height of statue}}{\text{164 cm}}\times \text{164 cm}=\frac{\text{68 inch}}{\text{41 inch}}\times \text{164 cm}

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\text{Height of statue}=272\text{ inches}

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