Help me with these questions please!!!
1 answer:
Answer: Here are all of the answers to the best of my ability :)
1: Solve the following equation for “y”:
3y - 4x = 15
Steps:
1. Add 4x to both sides. 3y = 4x + 15
2. Divide both sides by 3. Y= 4/3x + 5
Final answer: y= 4/3x + 5
————————————————————-
2. Write an equation in slope intercept form for a line that passes through the y axis at 5 and has a slope of -3.
Slope intercept form: y = mx + b
B= y intercept
Mx= slope
Equation: y = 3x + 5
———————————————————————————————————
3. Is (-2, 6) a solution of -3y + 5y = 4x?
Steps:
1. -3(6) + 5(6) = 4x
2. -18y + 30y = 4x
3. 12 = 4x
4. Rewrite the equation: 4x = 12
5. Divide by 4 on both sides
6. x = 3
Yes, this is a solution to -3y + 5y = 4x
————————————————————————-
4. Write the following equation in slope intercept form: x + 8y = 30
1. Add negative 8y to both sides. X = -8y + 30
Answer: x= -8y + 30
——————————————————————————-
5. Graph this equation: 2x + 5y = 20
That’s all I could find. Sorry if I made I mistake. Have a good day!
You might be interested in
Answer:
Step-by-step explanation:
First, rewrite the given equation in the form of y=mx+c.
m is the gradient while c is the y-intercept.
3x-5y=8
5y= 3x -8
Thus, the gradient of the given equation is ⅗.
The product of the gradients of perpendicular lines is -1.
(gradient of line)(⅗) = -1
gradient of line= -1 ÷⅗
gradient of line=
To find the value of c, substitute a coordinate.
When x=3, y=7,
7= -5 +c
c= 7+5
c= 12
Hence, the equation of the line is .