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Scorpion4ik [409]
3 years ago
7

Indicate the equation of the given line in standard form. The line through point (-3, 4) and perpendicular to a line that has sl

ope 2/5
Mathematics
1 answer:
statuscvo [17]3 years ago
6 0
To be perpendicular the product of the two slopes must equal -1.

2m/5=-1

2m=-5

m=-2.5

since y=mx+b we have so far

y=-2.5x+b, using point (-3,4) we can solve for b

4=-2.5(-3)+b

4=7.5+b

b=-3.5 so

y=-2.5x-3.5  We can multiply the whole equation by two so that the coefficients are integers...

2y=-5x-7  add 5x to both sides

5x-2y=-7
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5 0
3 years ago
How many solutions does this system have?
Korolek [52]

Answer:

Option- one is correct.

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Step-by-step explanation:

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Now to the solution:

To solve the given system of equations using substitution method.

That is substitute equation(1) in equation (2) we get

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Therefore the solution is (7,-21)

Therefore Option- one is correct.

The given system of equations have one solution that is (7,-21)

6 0
3 years ago
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