madeleinemcall madeleinemcall

13-02-2015
Mathematics

contestada

Y=-x^2+2x+7
Y=2x+7
Can you please help me with this substitution for graphing

Respuesta :

apologiabiology apologiabiology

13-02-2015

so subsitute 2x+7 for y
2x+7=-x^2+2x+7
subtract 2x+7 from both sides
0=-x^2
obviously x=0
then subsitute
0 for x
y=2(0)+7
y=0+7
y=7

the answer is
x=0
y=7

Answer Link

Otras preguntas

Lucy's family purchased one sweatshirt and 4 t-shirts for $110. Mark's family bought three sweat-shirts and 4 t-shirts for $200. Determine the cost of a t-shirt

Classify these sentences.1. always pay your bills before the due date and keep your payment stub.2. abruptly, several skaters exited the rink.3. did roberta arr

How many states were included in the republic established by the constitution?

What four european countries were most involed in eploring and discovering new lands?

What type of cancer did david bowie have?

Given: tangent If m = 60° and m = 30°, then m 3 = 45 30 15

What is the first step?

Which list includes three forms of energy?(1) chemical, mechanical, electromagnetic(2) chemical, mechanical, temperature(3) thermal, pressure, electromagnetic(4

Which statement is true of DNA polymerase? A) it starts the process of cell division. C)it adds bases in only on direction

In the various fights between management and union members what did each side believe