A pair of equations is shown below:

Mathematics

2 answers:

Tema [17]3 years ago

3 0

Eay peasy

solve graphically
graph them and find the poitn that they intersect at

y=mx+b
m=slope
b= y intercept

y=7x-9
slope=7
yintercept=-9

y=3x-1
slope=3
yinercept=-1

I have attached graph below

easier way would be to simply sub them and solve
7x-9=y=3x-1
7x-9=3x-1
4x-9=-1
4x=8
x=2

y=3x-1
y=3*2-1
y=6-1
y=5
(2,5) is solution

fgiga [73]3 years ago

3 0

Answer:

A) We need to put them on a graph to see where the points intersect.

So in y = MX = b, The m is slope and b is the y-intercept. So in y = 7x − 9 seven is the slope and 9 is the y-intercept. And in y = 3x − 1 Three is the slope and 1 is the y-intercept.

B) 2,5 is were these lines intersect.

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Find the measure of the missing angles.

Alenkinab [10]

Answer:

d = 69°, e = 32°, f = 79°

Step-by-step explanation:

the 69° angle and d are vertical angles, so d is 69°.

same with e and the 32° angle, so e is 32°.

the 69° angle and f are on a straight angle, which means they, and e, add up to 180° when combined.

69 + 32 = 101

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so f is 79°.

8 0

2 years ago

I need help with this

Finger [1]

ask your teacher.

use a calculator.

Use math tutoring for this module.

Pay more attention to the lecture.

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3 years ago

What is the equation of the following graph in vertex form?

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Correct answer is D.

Graph passes through the point (-1, 0).
Therefore, x = -1 and y = 0.

$y=(x+1)^2
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\\0=0^2
\\0=0 \;\; \text{T}$

This is the only equation which is true for x = -1 and y = 0.
Therefore, the solution is $y=(x+1)^2$